NCERT Geography Solutions Class 9th :- Chapter 4 Climate Solutions
Page No: 27
1. Find out why the houses in Rajasthan have thick walls and flat roofs.
2. Find out why is it that the houses in the Tarai region and in Goa and Mangalore have sloping roofs.
3. Why are houses in Assam built on stilts?
4. Why most of the world’s deserts are located in the western margins of continents in the subtropics?
Page No: 39
1. Choose the right answer from the four alternatives given below :
(i) Which of the following places receives the highest rainfall ?
(d) None of these
(ii) The wind blowing in the northern plains in summers is known as:
(c) Trade winds
(d) None of the above
(iii) Which one of the following causes rainfall during winters in northwestern part of India?
(a) Cyclonic depression
(b) Retreating monsoon
(c) Western disturbances
(d) Southwest monsoon
(iv) Monsoon arrives in India approximately in:
(a) Early May
(b) Early July
(c) Early June
(d) Early August
(v) Which one of the following characterises the cold weather in India?
(a) Warm days and warm nights
(b) Warm days and cold nights
(c) Cool days and cold nights
(d) Cold days and warm nights
2. Answer the following questions briefly.
(i) What are the controls affecting the climate of India?
(ii) Why does India have a monsoon type of climate?
(iii) Which part of India does experience the highest diurnal range of temperature and why?
(iv) Which winds account for rainfall along the Malabar coast?
(v) What are Jet streams and how do they affect the climate of India?
(vi) Define monsoons. What do you understand by “break” in monsoon?
(vii) Why is the monsoon considered a unifying bond?
3. Why does the rainfall decrease from the east to the west in Northern India.
4. Give reasons as to why :
(i) Seasonal reversal of wind direction takes place over the Indian subcontinent.
(ii) The bulk of rainfall in India is concentrated over a few months.
(iii) The Tamil Nadu coast receives winter rainfall.
(iv) The delta region of the eastern coast is frequently struck by cyclones.
(v) Parts of Rajasthan, Gujarat and the leeward side of the Western Ghats are drought-prone.
5. Describe the regional variations in the climatic conditions of India with the help of suitable examples.
6. Discuss the mechanism of monsoons.
7. Give an account of weather conditions and characteristics of the cold season.
8. Give the characteristics and effects of the monsoon rainfall in India.
On an outline map of India, show the following.
(i) Areas receiving rainfall over 400 cm.
(ii) Areas receiving less than 20 cm of rainfall.
(iii) The direction of the south-west monsoon over India.