Q. Consider the following statements:
1.In spring, air mostly flows from east to northeast in India.
2.The upper atmospheric westerly winds come to India from the Atlantic Ocean during spring.
3.A region experiences a heat wave if its ambient temperature deviates by at least 4.5-6.4°C from the long-term average.
 Which of the statements given above are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: B
Notes:

Explanation –

Statement 1 is incorrect. In spring, India has air flowing in from the west to northwest.

Statement 2 and 3 are correct. The upper atmospheric westerly winds come to India from the Atlantic Ocean during spring. A region experiences a heat wave if its ambient temperature deviates by at least 4.5-6.4°C from the long-term average.

Source: ForumIAS