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Category 11 Geography NCERT Solutions Chapter 4 Climate

Category 11 Geography NCERT Solutions Chapter 4 Climate Project

Category 11 Geographic NCERT Solutions Chapter 4 Climate

Category 11 Geography Chapter 4 NCERT Textbook Questions

1. Select the right reply from the following four choices:

Question 1 (i)
What causes rainfall within the Tamil Nadu coastal areas in early winter
(а) Southwest Monsoon
b) Heat cyclones
(c) Koill
d) Local air circulation
(c) Northeast Monsoon

Question 1 (ii).
What’s the area of ​​India with an annual rainfall of lower than 75 cm? "
a) Half
b) Third Third
c) Two Thirds
d) Third Quarter
(d) Third Quarter

Question 1 (iii)
Which of the following is not a fact related to South India
(b) Temperature range is less here
(c) Temperatures are high throughout the year.
(d) Here are the extreme climatic conditions.
(d) Extreme Climate

Question 1 (iv)
Which of the following occurs when the sun shines vertically in the southern hemisphere of the Capricorn tropical region?
(a) High pressure develops
(b) Low pressure develops in northwest India due to high temperatures.
c) No changes in temperature and pressure occur in northwest India
. d) & # 39; Create & # 39; blowing in northwest India
a) High pressure develops in northwest India due to low temperatures.

Question 1 (v).
Which of the following Indian countries do we find an "As" type climate according to Koeppen?
(a) Kerala and the coast of Karnataka
(b) Andaman and Nicobar Islands
(c) Coromandel coast
d) Assam and Arunachal Pradesh
c [Cor] 19659004] 2. Answer the following questions in about 30 words.

Question 2 (i)
What are the three important factors that influence the Indian weather?
Three important factors that influence the Indian weather regulation mechanism are:

  • Distribution of air pressure and winds on the earth's surface , commonly known as winter disturbances, and tropical depression in the southwest during the monsoon season in India, which creates favorable weather conditions for rainfall.

Question 2 (ii).
What is the Convergene Tropical Areas?
The Inter Tropical Convergence Zone (ITCZ) is a low pressure zone located on the equator where the trade winds converge and thus is the area where the air tends to rise. In July, the ITCZ ​​is located at latitudes of 20 ° N to 25 ° N (above the Gangetic Plateau). These are sometimes called monsoon layers. This monsoon trough encourages the development of the thermal region to the north and northwest of India. As a result of the ITCZ ​​shift, southern hemisphere trade winds cross the equator between 40 ° and 60 ° E and begin blowing southwest to northeast due to Coriolis power. It turns into a southwest monsoon. In winter, the ITCZ ​​moves south, so the winds turn northeast to south and southwest. They are called northeast monsoons

Question 2 (iii).
What is meant by "monsoon compression"? Name India, which receives the highest rainfall.
High-speed winds with extreme thunder and lightening cause sudden rains. This is called monsoon pressing. The eastern jet stream is set to 15 ° N only after the western jet stream has left the area. This eastern jet stream is responsible for the eruption of the Indian monsoon

The highest rainfall occurs on the west coast, western Ghats, and also the Himalayas are located in the northeast and Meghalaya hills. . Here the rainfall exceeds 200 cm. In some parts of Khasi and Jaintia hills the rainfall exceeds 1000 cm. In the valley of Brahmaputra and its hills, the rainfall is less than 200 cm.

Question 2 (iv).
Define climate zone? What are the criteria for Koeppen's classification?
The climate area has homogeneous climatic conditions due to a number of factors. Temperature and rainfall are two important elements that are considered crucial in any climate rating system. Koeppen noted that the distribution of vegetation and climate is close. He chose certain values ​​of temperature and rainfall and associated them with the distribution of vegetation and used these values ​​for climate classification. Koeppen introduced the use of capital and lowercase letters to designate climate groups and types. Koeppen recognized five major climate groups, four based on temperature and the other based on rainfall.

  • Tropical Climate,
  • Dry Climate,
  • Warm Mild Climate,
  • Persistent Mild Climate,

Question 2 (v)
What types of cyclones cause rainfall?
West cyclone disorder causes rainfall in northwest India in winter. In the west and north-west, the western and northern western cyclone shocks that come in the winter months have crossed the Mediterranean and are brought to India by western jets. Rising night-time temperatures generally indicate the progression of the onset of these cyclone disorders

3. Answer the following questions with up to 125 words.

Question 3 (i)
The climate in India, despite many regional variations. Make This Statement With Suitable Examples
The monsoon system emphasizes India's unity with the rest of Southeast Asia. However, this notion of the broad unity of the monsoon species should not lead to ignoring its regional differences, which differentiate the weather and climate of different regions of India. The climate in Kerala and Tamil Nadu in the south is so different from that in Uttar Pradesh and Bihar in the north, but all have a monsoon type.

1. In summer, mercury sometimes touches 55 people. ° C in West Rajasthan, it drops as low as minus 45 ° C in winter around Leh. Chaja Rajasthan can store temperatures of 50 ° C or more on a summer day, while mercury hardly touches 19 ° C in Tawang (Arunachal Pradesh) on the same day.

2. In the evening of December, the temperature in Drass (Jammu and Kashmir) may drop to minus 45 ° C, while in Thiruvananthapuram or Chennai in the same night record it may drop to 20 ° C or 22 ° C.

3. In Kerala and the Andaman Islands, the difference between day and night temperatures can barely be seven or eight degrees. But in the Thar desert, with daytime temperatures around 50 ° C, at night it can drop significantly to as much as 15 ° -20 ° C.

4. Although snowfall occurs in the Himalayas, it only rains elsewhere in the country. Similarly, variations are observed not only in the type of rainfall but also in its amount. While in the Khasi Hills of Meghalaya Cherrapunji and Mawsynram receive more than 1,080 cm of rain per year, in Rajasthan Jaisalmer rarely receives more than 9 cm of rain during the same period.

5. Located in the Garo hills of Meghalaya, Tura can receive one day of rainfall for 10 years in Jaisalmer. Although annual rainfall is less than 10 cm in the northwestern Himalayas and western deserts, it exceeds 400 cm in Meghalaya.

6. The Ganges Delta and the Orissa coastal areas are affected by heavy rainstorms almost every third or fifth day in July and August, while the Coromandal coast, a thousand kilometers south, usually goes dry during these months. Most of the country receives rain from June to September but in the coastal areas of Tamil Nadu it rains at the beginning of the winter season

These examples confirm that the temperature varies seasonally from place to place in India. Despite these differences and variations, the Indian climate is rhythmic and monsoon in nature

Question 3 (ii)
How many distinct seasons in India occur in the Indian Meteorological Department? Discuss in detail the weather conditions associated with any season
India, like the Indian Meteorological Institute, has four distinct seasons:

  • Winter Season (December to May)
  • Summer Season (March to May)
  • (June to September)
  • Monsoon retreat (October to November)

Summer season: April, May and June are summer months in northern India
In most parts of India, temperatures range from 30 ° C to 32 ° C. Deccan Plateau, while in April, Gujarat and Madhya Pradesh have temperatures ranging from 38 to 43 ° C. In May, the heat belt moves to the north and temperatures around 48 ° C are not uncommon in northwestern India

The hot weather in South India is mild powerful, as is observed in northern India. The southern Indian peninsula, where the enormous influence of the oceans is considered, keeps temperatures lower than those in northern India. Temperatures therefore remain between 26 ° C and 32 ° C. Because of the altitude, the temperatures in the Western Ghats are below 25 ° C. In coastal areas, the temperature does not fall from north to south, but rises from the coast to the interior. The average daily minimum temperature in the summer months will also remain fairly high and rarely below 26 ° C. "

Challenge / Activity

The define of India has the next info:

  • Winter Rain Areas
  • Wind Course in Summer time
  • over 50 % [19659012] Areas with temperatures under 15 ° C in January
  • Massive dip, 100 cm
  • Reply:

      Category 11 NCERT Geographic Solutions Chapter 4 Climate Project

    Category 11 Geography Chapter 4 NCERT Superior Questions

    Category 11 Geographies Chapter 4 A number of Selection Questions

    Query 1.
    Winds blowing on the Asian continent to the north of the Himalayas.
    (a) Monsoon Discharge
    (b) Western Cyclones
    (c) Water Streams
    (d) Monsoon Winds
    (c) Jet Streams

    Question 2 ] A sudden burst of moisture-laden wind associated with a sudden storm and lightning is also known as
    (a) Monson burst
    (b) Western cyclones
    ] (c) Water currents
    (d) 1945
    (a) Monsoon outbreak

    Query Three.
    The very best rainfall happens in India at:
    ) Mawsynram
    (b) Japanese Coast
    (c) Gaya
    (d) Bhabhar
    (a) Mawsynram

    Question 4
    Which of the following is
    (a) Northeast India and West Coast
    (b) Ladakh District
    (c) Tamil Nadu Coast
    d) Rann of Kachchh
    a) North East India and West Coast [19659004] Quest ion 5.
    What are the standards for Koeppen's classification?
    a) Latitude and Longitude
    b) Wind and Strain
    (c) Temperature and Precipitation
    d) Native Climate Circumstances
    (c) Temperature and Precipitation based mostly on

    Question 6
    in Assam and western storms are
    (a) Kalbaisakhi
    (b) Western Cyclone
    (c) Bardoli Chheerha
    (d) Amravati
    ] (c) Bardoli chheerha

    Query 7
    What is the position of the southern department of the jet streams
    a) 35 ° S latitude
    b) 25 ° N latitude
    c) 15 ° N latitude
    d) Latitude 25 °
    (c) Latitude 15 °

    Question eight
    (a) 1020 cm
    (b) 1050 cm
    (c) 1080 cm
    (d) 1000 cm
    (c) 1080 cm

    Question 9
    What can we name when the monsoon retreats?
    (a) Monsoon withdrawal
    (b) Monsoon outbreak
    (c) Western cyclone
    (d) Bardoli chheerha
    (a) Monsoon withdrawal

    What season is September via December
    a) Winter season
    (b) Monsoon
    (c) Summer time season
    (d) Wet season
    ( b) Monsoon retreat

    Query 11

    Query 11
    Through which areas of India is there a mango bathe?
    (a) Bihar and Uttar Pradesh
    b) Kerala and coastal Karnataka
    c) Orissa and West Bengal
    d) Punjab and Haryana
    (b) Kerala and coast of Karnataka

    Query 12.
    Which crops grow because of a flower shower
    (a) Cotton
    (b) Coffee
    (d) Cashew
    (b) Coffee

    Query 13.
    During which areas of India can we experience cyclones?
    a) East Coast
    b) West Coast
    c) Northern Plains
    d) West India
    a) East Coast

    Category 11 Highlands answer sort questions

    Question 1.
    What do you mean by "Monsoon"?
    It is derived from the Arabic phrase Mausim which suggests Season.

    Question 2.
    Explain two elements that help affect the Indian monsoon.
    Two elements which might be useful in Indian monsoon are: [19659042] Jet stream Winds

  • Atmospheric strain distinction
  • Question Three.
    Identify two essential seasons in Indian local weather
    The two essential seasons in the Indian climate are:

    1. western monsoon
    2. southeast monsoon

    Question 4.
    Identify the Sanctuary interval Indian seasons monthly.

    • Summer time Season (March-Might)
    • Winter Season (December-February)

    What is the jet stream?
    that blows on the Asian continent at latitudes north of the Himalayas which are approximately parallel to the Tibetan highlands is known as the jet stream.

    Question 6.
    What is a monsoon?
    The western monsoon season, after a couple of days of rain, if it doesn’t rain for a number of weeks, it is called a crushed monsoon

    Query 7
    Winter monons don’t cause rain once they transfer to the sea. Why?
    This is because of two reasons: First, they’ve low humidity; and secondly, because of the cyclical cycle on land, the quantity of rain they cause is lowered.

    Question 8.
    What is the course of the wind in Kerala when it retreats?
    The winds retreating in Kerala, the monsoon is from north to east and east to west.

    Query 9.
    What’s the difference between lavatory and chilled wave?
    The recent, dry and oppressive winds blowing from the Punjab to Bihar in the northern plains of higher depth between Delhi and Patna are referred to as lavatory. When the temperature drops too much in the northern plains, the winds blowing in these areas are referred to as the cooled wave

    Query 10.
    What formulation is used to measure rainfall variation?
    imageee [19659004Question
    Which India has a polar local weather?
    In India, the polar climate is found within the higher a part of the Himalayas, 4,000 meters above sea degree.

    Query 12.
    Identify India's Cozy Places in Winter Season
    Coastal Areas and South India are the Most Favorite Locations in Winter Season

    Query 13
    Identify Indian Region
    The humidest areas of India are the South East India and the Western Ghats

    Question 14.
    What’s a mango shower?
    In the direction of the top of the summer time, there are pre-monsoon jets, which are widespread phenomena in Kerala and Ka's coastal areas rnataka.

    Query 15.
    What are western cyclones?
    Western cyclonic disturbances enter the Indian subcontinent west and northwest through the winter months.

    Query 16.
    What is supposed by monsoon urgent?
    The sudden onset of a moisture load on violent storms and lightning-related winds is also known as "monsoon" breaks or "outbursts".

    Query 17.
    Why does Tamil Nadu coast remain dry within the southwest monsoon?

    • The Tamil Nadu coastline is parallel to the southwest monsoon road within the Bay of Bengal.
    • It’s situated in the shadow area of the southwestern monsoon Arabian Sea branch.

    Question 18
    What is meant by October heat?
    The southwest-southwest monsoon season is marked by clear skies and rising temperatures. The bottom continues to be moist. Because of the high temperature and humidity, the weather turns into fairly miserable and known as October heat.

    Query 19.
    The place do tropical cyclones come from?
    Tropical cyclones come from the Bay of Bengal and the Indian Ocean. These tropical cyclones have extremely high wind speeds and heavy rainfall, hitting Tamil Nadu, Andhra Pradesh and the Orissa coast. Most of these cyclones are very damaging because of the high wind velocity and associated rainfall.

    Query 20.
    Report areas receiving rainfall from the southeast monsoon
    Only the coastal areas of Tamil Nadu receive rain from the southeast monsoon.

    Query 21.
    What are the necessary options of Kalbaisakh
    These are the dreaded evening thunderstorms in Bengal and Assam. Their notorious nature could be understood from the Kalbaisakh native nomenclature.

    Query 22.
    What is El-Nino?
    EI-Nino is a posh weather system that seems as soon as every three to seven years.

    Report Koeppen Climate Score
    Koeppen recognized five main local weather groups, 4 of that are

    • Tropical Climate,
    • Dry Climate,
    • ,
    • Chilled temperate local weather,
    • Ice local weather

    Question 24.
    Query 24.


    • Western Department
    • Northeast.

    Question 25.
    What’s the rainfall within the West?
    Rainfall decreases from east to west

    What kind of rainfall is causing in the northeast?
    Heavy Precipitation

    Query 27.
    Where in the World Do Heavy Precipitation Occur
    ] Reply:
    at Mawsynram, 1080 cm.

    Query 28.
    What are the essential options of Monsoon?
    Irregularity, Uncertainty, Roughness and Unreliability

    In what months does Monsoon withdraw?
    From mid-September to November

    Question 30.
    When does the monsoon depart the northern plateau?

    Query 31.
    Where will the low strain vary develop in November?
    Gulf of Bengal

    Question 32.
    Query 32.

    Peninsular Indian East Coast

    Query 33
    Query 33.

    • Western Ghats Wind Slopes
    • Meghalayas Plateau

    Query 34.
    Which three areas receive less rainfall in India?

  • Ladakh area.
  • Query 35.
    Which areas of India commonly experience snowfall?

    Category 11 Geography Chapter 4 Brief Reply Sort Questions

    Question 1.
    Explain the traits of Indian monsoon rains
    Answer: [1965901] The western monsoons are seasonal, which occurs from June to September.

  • The monsoon rainfall is reducing and the space from the sea is growing. Kolkata is out there in 119 cm southwest monsoon, Patna 105 cm, Allahabad 76 cm and Delhi 56 cm.
  • Summer time rainfall is a severe fall, resulting in vital runoff and soil erosion.
  • Monsoon performs a key position in Indian agriculture as more than three quarters of the country's rainfall is within the southwest in the course of the monsoon season. Its spatial distribution can also be uneven, starting from 12 cm to over 250 cm. 19659012] The onset of rainfall has typically been significantly delayed in all or part of the nation.
  • Query 2.
    What is supposed by a monsoon breaking?
    In the course of the southwest monsoons, when the rains have been for a couple of days, if the rain doesn’t happen for one or more weeks, it is called the monsoon.
    The traits of the recent climate season are:

    • When the solar is seen within the north in the direction of the tropics of most cancers in March, the temperature begins to rise in northern India. April, Might and June are summer time months in northern India
    • The recent climate in southern India is delicate and never as severe as in northern India.
    • Because of the heating of the subcontinent, the ITCZ ​​strikes north and is situated in the midst of 25 ° N. Roughly, this elongated low strain monsoon chute extends northwest to Patna in the Thar Desert and to the southeast to southeast of the Chota Nagpur Plateau.
    • In the heart of the ITCZ ​​in the northwestern half, dry and scorching winds, referred to as Lavatory strikes within the afternoon and very often
    • Evening dust storms are very common in Might in Punjab, Haryana, East Rajasthan and Uttar Pradesh

    What Are El-Nino Features
    EI-Nino is a posh weather system that seems as soon as every three to seven years, bringing drought, floods, and different extremes all over the world.

    • Atmospheric phenomena that happen in warm currents off the Peruvian coast within the japanese Pacific, affecting many locations resembling India.
    • EI-Nino is merely an extension of the nice and cozy equatorial present briefly replaced by a cold present in Peru or a Humbolt stream
    • This stream increases the water temperature along the Peruvian coast by 10 ° C. Id) This leads to:
      • Distortion of equatorial air circulation
      • ] Seawater Evaporation Abuse
      • Reduction in plankton abundance which additional reduces fish in the ocean.

    Query 4.
    Why does India get a monsoon referred to as the southwest monsoon?

    • Low-pressure circumstances in early June are efficient enough to draw southern hemisphere winds
    • These southeastern trade winds cross the equator and come to the Bay of Bengal and the Arabian Sea, they usually only get into India. Exceeding warm equatorial currents brings with them a substantial amount of moisture.
    • After crossing the equator, they comply with the south-west path and are referred to as the southwest monsoon

    Query 5.
    Listing the elements affecting the subcontinent local weather in India

    • Strain and Wind Methods: This In flip Depends upon:
      • Trade Winds
      • West Shocks
      • Jet Stream,
  • Ocean Distance
  • Ocean Streams
  • Isolate southwest from monsoon and retreating monsoon

    Basis Climate [19659162] Climate Time


    Climate is beneath weather circumstances common over a longer time period Time [19659161] The climate modifications rapidly, may be within a day or every week. The climate is unlikely to vary and may be detected after 50 years or much more. Frequency The frequency of the weather change may be many occasions a day. 19659162] Density of local weather change is a very lengthy course of and cannot be seen so easily.

    Query 7
    Differences in Southwest Monsoon and Mycona Exit:

    Foundation Southwest Monsoon Monsoons [Oct19169167] November
    Path The course of these winds is from west to northeast. These winds are calm.
    Rain Throughout these months, southwestern Monsoons cover all of India and supply heavy rainfall. The humidity is high. The temperature rises once more when the ground is covered with rain water, the humidity rises excessive. The temperature rises.

    Category 11 Geographies Chapter 4 Long Answer to Sort Questions

    Question 1.
    Explain the essential options of the Indian winter season.
    By the top of October, the rainy season will end everywhere in the nation, with the days shorter and the night time turning into longer. The rays of the solar are usually not above. The air gets cooler in the plains that mark the arrival of the winter season

    The winter season lasts from November to February annually. Within the northern plains, very chilly wind blows the winter months. December and January are the coldest months of the northern plateau. The typical every day temperature is under 21 ° C in most elements of northern India

    A lot of the hilly areas obtain heavy snowfall. January is the coldest month in Northern Plains. The peninsular Indian winter season is delicate because of the influence of the encompassing waters. Coromandel Coast receives heavy rain this season.

    The desert is cool through the day but chilly at night time. The air begins to heat up in March and the weather is neither cold nor scorching. This beginning of summer time can also be referred to as the spring season.

    Query 2.
    In accordance with Koeppen, how many groups are you able to classify the Indian local weather?
    Koeppen famous the relationship between shut vegetation and climate distribution. He selected sure values ​​of temperature and rainfall and related them with the distribution of vegetation and used these values ​​for local weather classification. Koeppen launched using capital and lowercase letters to designate climate groups and types. Koeppen acknowledged five major local weather groups, 4 based mostly on temperature and the other based mostly on rainfall.

    • Tropical Climate,
    • Dry Climate,
    • Warm Delicate Climate,
    • Persistent Delicate Climate,

    Classification of Indian Climate Areas: Amw – Monsoon through the Brief Dry Season
    As – Monsoon in dry summer time
    Areas: Coromandel Tamil Nadu Coast [19459008
    Areas: Most peninsular plains, south of the tropical
    Bwhw – steppe local weather.
    Areas: Northwestern Gujarat, elements of western Rajasthan and Punjab
    Bwhw – scorching desert. Areas: Excessive western Rajasthan
    Cwg – Monsoon with dry winter.
    Areas: Ganga plain, japanese Rajasthan, northern Madhya Pradesh, most of north-east India
    Dfc – Chilly humid winter with brief summer time.
    ] Areas: Arunachal Pradesh
    E – Polar sort. Areas: Jammu and Kashmir, Himachal Pradesh and Uttarakhand.

    Query Three.
    Clarify the spatial variation in the rainfall throughout the country.
    There’s a great variation within the rainfall throughout the nation. [19659187] While Cherrapunji and Mawsynram in the Khasi Hills of Meghalaya obtain rainfall over 1,080 cm in a yr, Jaisalmer in Rajasthan not often gets more than 9 cm in rainfall throughout the identical period.

  • Tura located in the Garo Hills of Meghalaya might obtain an amount of rainfall in a single day which is equal to 10 years of rainfall at Jaisalmer. While the annual Precipitation is less than 10 cm in the north-west Himalayas and the western deserts, it exceeds 400 cm in Meghalaya.
  • The very best rainfall happens alongside the west coast, on the western ghats in addition to in the sub- Himalayan areas within the north-west and the hills of Meghalaya, rainfall extending 200 cm. In some elements of Khasi and Jaintia Hills, the rainfall exceeds 1,000 cm. In the Brahmaputra valley and the adjoining hills, the rainfall is lower than 200 cm.
  • Rainfall between 100-200 cm is acquired in southern elements of Gujarat, east Tamil Nadu, North-eastern Peninsular masking Orissa, Jharkhand, Bihar, japanese Madhya Pradesh, Northern Ganga Plain along the sub-Himalayas and the Cachar valley and Manipur.
  • Western Uttar Pradesh, Delhi, Haryana, Punjab, Jammu and Kashmir, japanese Rajasthan, Gujarat and Deccan Plateau receive rainfall between 50-100 cm.
  • Query 4.
    Clarify the spatial variation in temperature in India.
    India has scorching monsoonal local weather which is the prevalent local weather in south and south-east Asia.

    • Whereas in the summer the mercury sometimes touches 55°C in the western Rajasthan, it drops right down to as little as minus 45°C in winter round Leh.
    • Churu in Rajasthan might document a temperature of 50°C or extra on a June day while the mercury hardly touches 19°C in Tawang (Aruna chal Pradesh) on the same day.
    • On a December night time, temperature in Drass (Jammu and Kashmir) might drop right down to minus 45°C while Thiruvananthapuram or Chennai on the identical night time data 20°C or 22°C.
    • In Kerala and in the Andaman Islands, the distinction between day and night time temperatures could also be hardly seven or eight degree Celsius. But within the Thar desert, if the day temperature is round 50°C, at night time, it might drop down considerably upto 15°-20°C.
    • Whereas snowfall occurs within the Himalayas, it only rains over the remainder of the nation. Similarly, variations are noticeable not solely in the kind of precipitation but in addition in its amount.

    Query 5.
    How financial life in India is affected by monsoon?
    Financial lifetime of India is extremely affected by the monsoon.

    • Monsoon is that axis around which revolves your complete agricultural cycle of India. Round 64 % individuals of India rely upon agriculture for their livelihood and agriculture itself is predicated on south-west monsoon.
    • Besides Himalayas all the elements of the nation have temperature above the edge degree to grow the crops or crops throughout the year.
    • Regional variations in monsoon local weather assist in growing numerous varieties of crops.
    • Variability of rainfall brings droughts or floods every year in some elements of the country.
    • Agricultural property of India relies upon very much on well timed and adequately distributed rainfall. If it fails, agriculture is adversely affected notably in these regions the place technique of irrigation will not be developed.
    • Sudden monsoon burst creates problems of soil erosion over giant areas in India.
    • Winter rainfall by temperate cyclones in north India is very useful for Rabi crops.
    • Regional climatic variation in India is mirrored within the vast number of food, garments and house varieties.

    Question 6.
    What’s International Warming? What are the consequences of International Warming?
    On account of international warming the polar ice caps and mountain glaciers would soften and the quantity of water within the ocean would improve. It leads to rise in the sea degree and melting of glaciers and sea-ice as a consequence of warming.


    • Sea degree will rise 48 cm by the top of twenty first century.
    • Improve the incidence of annual flooding.
    • Insect-borne illnesses like malaria, and leads to shift in climatic boundaries, making some areas wetter and different dries.
    • Agricultural sample would shift and human inhabitants as well as the ecosystem would expertise change.
    • The peninsular India can be submerged.
    • International warming refers back to the improve in common floor temperatures refers to the improve in average ground temperatures on earth. These greater temperatures across the planet are brought on by an intensification of the greenhouse impact.

    Question 7.
    What’s Break in Monsoon? What are its causes? When is the monsoon anticipated to break in Kerala and reach the plains of Punjab?
    In the course of the south-west monsoon period after having rains for a couple of days, if rain fails to happen for one or more weeks, it is called break within the monsoon. These dry spells are fairly widespread in the course of the wet season. These breaks in the totally different regions are as a result of totally different reasons:

    • In northern India rains are more likely to fail if the rain-bearing storms are usually not very frequent along the monsoon trough or the ITCZ over this area.
    • Over the west coast the dry spells are related to days when winds blow parallel to the coast.

    Breaking of Monsoon:

    • Breaking of the Monsoon in Kerala: Beginning of June.
    • Reaching Punjab: First week of July.

    Class 11 Geography Chapter 4 Hots Questions

    Question 1.
    Give reasons for the next:

    1. North west India will get rainfall even in winter season.
    2. In Tamil Nadu, more rainfall takes place in winter season as compared to summer time season.
    3. Very much less rainfall happens in Rajasthan.
    4. In winter season there’s high atmospheric strain in North west a part of India.
    5. In North west monsoon the winds of Gangetic plains move from west to east.
    6. Highest rainfall occur s in Mawsynram and Cherrapunji.
    7. Temperature vary of Delhi is more than Mumbai.
    8. Temperature falls in winter season in north India.

    1. In northwestern India, some weak temperate cyclones from the Mediterranean sea cause rainfall in Punjab, Haryana, Delhi and western Uttar Pradesh. Though the amount is meagre, it is extremely useful for rabi crops. The precipitation is within the type of snowfall within the lower Himalayas. It is this snow that sustains the move of water within the Himalayan rivers through the summer time months. The precipitation goes on reducing from west to east in the plains and from north to south within the mountains.

    2. The coasts of Tamil Nadu or Chennai coasts have more than 5 cm of rainfall in winter. It is because the North-east monsoon winds passing over the Bay of Bengal get moisture and once they reach the Tamil Nadu coasts they cause rainfall here.

    Three. Shifting alongside the Narmada and Tapi river valleys, monsoon winds along the Arabian Sea cause rainfall in in depth areas of central India. The Chota Nagpur plateau will get 15 cm rainfall from this a part of the department. Thereafter, they enter the Ganga plains and mingle with the Bay of Bengal branch. When this monsoon wind strikes the Saurashtra Peninsula and the Kachchh. It then passes over west Rajasthan and alongside the Aravalis, inflicting solely a scanty rainfall as a result of these winds are not any wetter.

    4. In south India, the air strain is slightly lower. The isobars of 1019 mb and 1013 mb cross by way of north-west India and much south, respectively. Consequently, winds begin blowing from north-western excessive strain zone to the low air strain zone over the Indian Ocean in the south. On account of low strain gradient, the sunshine winds with a low velocity of about Three-5 km per hour start to blow outwards. By and enormous, the topography of the region influences the wind course.

    5. By and enormous, the topography of the area influences the wind path. They’re westerly or north-westerly down the Ganga Valley. They grow to be northerly in the Ganga-Brahmaputra delta. Free from the affect of topography, they’re clearly north-easterly over the Bay of Bengal. In the course of the winters, the weather in India is nice. The pleasant weather circumstances, nevertheless, at intervals, get disturbed by shallow cyclonic depressions originating over the east Mediterranean Sea and travelling eastwards throughout West Asia, Iran, Afghanistan and Pakistan earlier than they reach the north-western elements of India. On their means, the moisture content material will get augmented from the Caspian Sea in the north and the Persian Gulf within the south.

    6. It is coated with three hills Garo, Khasi and Jantia. Being coated from hills from three sides, as a result of which winds as soon as enter can’t depart this region. They strike with mountains and cause rainfall. Subsequently, Mawsynram and Cherrapunji have highest rainfall.

    7. Range of temperature is low in areas which are near to sea and high in areas which are far off from the sea. Delhi is way off from the ocean and Mumbai is close to to sea. Subsequently, temperature vary of Delhi is greater than Mumbai.

    8. There are three fundamental causes for the excessive cold in north India during this season :

    • States like Punjab, Haryana and Rajasthan being distant from the moderating affect of sea experience continental climate.
    • The snowfall in the nearby Himalayan ranges creates cold wave state of affairs;
    • Around February, the chilly winds coming from the Caspian Sea and Turkmenistan convey cold wave together with frost and fog over the north-western elements of India.

    Query 2.
    Explain the which means of advancing monsoon and retreating of monsoon.
    The season when rainy season begins in India, it is referred to as advancing monsoon. It starts from Bay of Bengal and Arabian sea. The season of retreating monsoon is the period of Transition. In the course of the interval of transition low strain of the north-west shifts to the Bay of Bengal. It leads to the formation of cyclones over the Bay of Bengal. These cyclones cause havoc on the coasts of Orissa and Andhra Pradesh.

    Question 3.
    Which areas have more than 50 cm and less than 5 cm of rainfall in July? Why is it so?
    Most areas of the nation have greater than 50 cm of rainfall in July. The western Rajasthan (Thar Desert) and the North-eastern Ladakh expertise lower than 5 cm. of rainfall in July. As a consequence of parallel situated of Aravalis, lack of vegetation, excessive temperatures and non-condensation of moisture in western Rajasthan rainfall could be very scanty. The Zaskar vary doesn’t permit the monsoon winds to succeed in North-eastern Ladakh. Therefore it also receives very scanty rainfall during July.

    Query 4.
    How have the easterlies assumed the identify ‘Trade’?
    Answer: The word ‘Trade’ has been derived from the German world ‘Track’. Monitor means the path on which winds blow in the identical course throughout the year and on the identical course. The easterlies characterise these qualities. Hence, they’ve assumed the identify ‘trade’.

    Query 5.
    Why does Shillong obtain more rainfall than Calcutta (Kolkata)? Give two causes.
    Shillong is located on the Meghalaya Plateau which receives the very best rainfall in the country.

    • Shillong is located on lofty mountains, funnel formed. Here condensation is intense causing heavy rainfall.
    • Kolkata is situated on the Ganga- Brahmaputra Delta. There isn’t a mountain vary obstructing the South west monsoon. Therefore, it receives much less rainfall.

    Question 6.
    What’s annual range of temperature? Explain it by giving one instance.
    The difference between the maximum average temperature and minimal common temperature of a spot over twelve months is called annual range of temperature.
    The maximum average temperature at Jodhpur is 33.9°C and minimum, common temperature is 14.9°C. Therefore the annual range of temperature at Jodhpur is 19°C (33.9°C – 14.9°C).

    Query 7.
    What is extreme climate? Identify two places of utmost local weather in India.
    Excessive Climate:
    The local weather which has high annual range of temperature and great variation within the quantity of rainfall over the yr is called extreme local weather. Additionally it is referred to as continental or inside local weather as it is found within the inside elements of the continents.
    For examples, Jodhpur, Delhi and Kanpur.

    Query 8.
    Why does rainfall on the Western Ghats lower from south to north?
    Rainfall on the Western Ghats decreases from south to north because the height of the Western Ghats in the south is maximum and it goes on reducing northwards allowing progressively much less condensation. It leads to the lower of rainfall from south to north. More over the period of onset and withdrawal of monsoon in south is greater than that within the north. It leads to extra rainfall in southern elements than within the northern elements of the Western Ghats.

    Class 11 Geography Chapter 4 Value Based mostly Questions

    Query 1.
    “Monsoon is a gambling for Indian farmers.” Explain
    Agricultural property of India depends very much on well timed and adequately distributed rainfall. If it fails, agriculture is adversely affected notably in those regions where technique of irrigation aren’t developed. Monsoon is that axis round which revolves the whole agricultural cycle of India. Around 64% individuals of India depend upon agriculture for his or her livelihood and agriculture itself is predicated on south-west monsoon. Except Himalayas all of the elements of the nation have temperature above the edge degree to develop the crops or crops all year long. Regional variations in monsoon local weather help in rising numerous varieties of crops. Variability of rainfall brings droughts or floods every year in some elements of the nation.

    Query 2.
    “In spite of abundant rainfall, India is a water thirsty land”. Why is it so?
    India is a water thirsty land regardless of ample rainfall. This is because of the next elements:

    • Prevalence of rainfall in a number of months (from June to September).
    • Speedy run off and the fast evaporation of rainwater.
    • Lengthy breaks and delays within the Monsoons.

    Map Expertise

    Question 1.
    Find on an overview map of India, Japanese jet stream.
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q1

    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q1

    Query 2.
    Find on an overview map of India, regular dates of onset of southwest monsoon in several states of India.
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q2

    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q2

    Question Three.
    Find on an overview map of India, isotherms in India in January and July.
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Ski lls Q3 i

    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q3 i
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q3 iiClass 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q3 ii
    Query 4.
    Find on an overview map of India, Isobars and path of winds in India in January and July.
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q4 iClass 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q4 i
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q4 iiClass 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q4 ii

    Query 5.
    Locate on an overview map of India, annual rainfall in several states of India.
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q5

    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q5

    Query 6.
    Locate on an overview map of India, Seasonal rainfall (June-September) in several states of India
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q6

    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q6

    Question 7.
    Locate on an overview map of India, totally different climatic regions of India as per Koeppen’s classification.
    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q7

    Class 11 Geography NCERT Solutions Chapter 4 Climate Map Skills Q7

    Class 11 Geography NCERT Solutions