Q. Consider the following statements:

1. Jet streams are narrow belts of high altitude westerly winds in the troposphere.
2. The subtropical westerly jet streams are located approximately over 27°-30° north latitude.
3. In summer, the subtropical westerly jet streams move south of the Himalayas with the apparent movement of the sun.

Which of the above statements is / are correct?
Answer: Only 1 and 2
Notes: Statements 1 and 2 are correct: Jet streams are high altitude westerly winds, and subtropical westerly jet streams are found over 27°-30° N latitude. Statement 3 is incorrect; in summer, these jet streams move north of the Himalayas, not south, as the apparent position of the sun shifts northwards.