NCERT solutions for Social Science - Contemporary India 1 [English] Class 9 chapter 4 - Climate [Latest edition]

Choose the right answer from the alternative given below.
Which one of the following places receives the highest rainfall in the world?

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The wind blowing in the Northern Plains in the summers is known as

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Which one of the following causes rainfall during winters in north-western part of India?

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Monsoon arrives in India approximately in

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Which one of the following characterises the cold weather season in India?

Answer the following question briefly.
What are the controls affecting the climate of India?

Answer the following question briefly.
Why does India have a monsoon type of climate?

Answer the following question briefly.
Which part of India does experience the highest diurnal range of temperature and why?

Answer the following question briefly.
Which winds account for rainfall along the Malabar Coast?

Answer the following question briefly.
What are jet streams and how do they affect the climate of India?

Answer the following question briefly.
Define monsoons. What do you understand by “break” in monsoon?

Answer the following question briefly.
Why is the monsoon considered a unifying bond?

Give reason as to why.
Seasonal reversal of wind direction takes place over the Indian subcontinent?

Give reason as to why.
The bulk of rainfall in India is concentrated over a few months.

Give reason as to why.
The Tamil Nadu coast receives winter rainfall.

Give reason as to why.
The delta region of the eastern coast is frequently struck by cyclones.

Give reason as to why.
Parts of Rajasthan, Gujarat and the leeward side of the Western Ghats are drought-prone.

Describe the regional variations in the climatic conditions of India with the help of suitable examples.

On an outline map of India, show the following.

1. Areas receiving rainfall over 400 cm.
2. Areas receiving less than 20 cm of rainfall.
3. The direction of the south-west monsoon over India.

Find out which songs, dances, festivals and special food preparations are associated with certain seasons in your region. Do they have some commonality with other regions of India?

Collect photographs of typical rural houses and clothing of people from different regions of India. Examine whether they reflect any relationship with the climatic condition and relief of the area.

In above Table the average mean monthly temperatures and amounts of rainfall of ten representative stations have been given. It is for you to study on your own and convert them into ‘temperature and rainfall’ graphs. A glance at these visual representations will help you to grasp instantly the similarities and differences between them. One such graph (Figure 1) is already prepared for you. See if you can arrive at some broad generalisations about our diverse climatic conditions. 

Re-arrange the ten stations in two different sequences:

(i) According to their distance from the equator.

(ii) According to their altitude above mean sea-level.

Name two rainiest stations.

Name two driest stations.

Two stations with the most equable climate.

Two stations with most extreme climate.

Two stations most influenced by the Arabian branch of southwest monsoons.

Two stations most influenced by the Bay of Bengal branch of southwest monsoons.

Two stations are influenced by both branches of the southwest monsoons.

Two stations are influenced by retreating and northeast monsoons.

Two stations received winter showers from the western disturbances.

The two hottest stations in the month of

February

The two hottest stations in the month of

April

The two hottest stations in the month of

May

The two hottest stations in the month of

June

Now find out

Why are Tiruvanantapuram and Shillong rainier in June than in July?

Now find out

Why is July rainier in Mumbai than in Thiruvananthapuram?

Now find out

Why are southwest monsoons less rainy in Chennai?

Now find out

Why is Shillong rainier than Kolkata?

Now find out

Why is Kolkata rainier in July than in June unlike Shillong which is rainier in June than in July?

Now find out 

(vi) Why does Delhi receive more rain than Jodhpur?

Now think why Tiruvananthapuram has equable climate?

In spite of these facts see carefully if there is strong evidence to conclude that the monsoons still provide a very strong framework lending overall climatic unity to the whole country.

Now think why Chennai has more rains only after the fury of monsoon is over in most parts of the country?

In spite of these facts see carefully if there is strong evidence to conclude that the monsoons still provide a very strong framework lending overall climatic unity to the whole country.

Now think why Jodhpur has a hot desert type of climate?

In spite of these facts see carefully if there is strong evidence to conclude that the monsoons still provide a very strong framework lending overall climatic unity to the whole country.

Now think why Leh has moderate precipitation almost throughout the year?

In spite of these facts see carefully if there is strong evidence to conclude that the monsoons still provide a very strong framework lending overall climatic unity to the whole country.

Now think why While in Delhi and Jodhpur most of the rain is confined to nearly three months, in Thiruvananthapuram and Shillong it is almost nine months of the year?

In spite of these facts see carefully if there is strong evidence to conclude that the monsoons still provide a very strong framework lending overall climatic unity to the whole country.