class-9 Chapter-4 Climate Q1. What are Jet Streams and how do they affect the climate of India? Q2. Give Reason Why? a) The Tamil Nadu coast receives winter Rainfall. b) Seasonal Reversal of wind direction takes place over the Indian subcontinent?
class-9 Chapter-4 Climate Q1. What are Jet Streams and how do they affect the climate of India? Q2. Give Reason Why? a) The Tamil Nadu coast receives winter Rainfall. b) Seasonal Reversal of wind direction takes place over the Indian subcontinent?
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They are responsible for western
disturbances which bring winter rainfall in the North and North werstern parts of India.
2 tamil nadu coast receives winter rainfall it is due to retreating monsoons which pick up moisture from Bay of Bengal and strikes the Tamil Nadu Coast and gives it winter rainfall.
b Seasonal reversal of wind direction takes place over the India subcontinent this is due to change in temperature and pressure conditions over land and water.
Answer:
Explanation:
Ans. 1
Jet streams are fast flowing narrow meandering air currents found in the atmosphere of some planets including earth. The westerly flows are responsible for the western disturbances experienced in the north and north western parts of the country. In the months of October-November the easterly jet streams cause topical depressions.
Question2
Answer(a)
The Tamil nadu coast receives winter rainfall because of movement of low pressure conditions to the Bay of Bengal.
Answer(b)
Seasonal reversal of wind direction over the Indian subcontinent takes place due to pressure differential. A major part is played by the El Niño in the seasonal reversal of wind direction over the Indian subcontinent.