Question

Which of the following are true with reference to jet streams?

• A. High-velocity winds
• B. Blows in the troposphere
• C. Causes weaker monsoon
• D. Affects the onset of monsoon

Answer 1

Answer: (A), (B), (D)

The correct options are
A High-velocity winds
B Blows in the troposphere
D Affects the onset of monsoon

Jet streams are high-velocity winds that blow in the troposphere at an altitude of around 12,000 metres. These winds are faster than surface winds as there are no obstacles in the troposphere. The speed can vary from 110 to 184 km/h in winter, and these streams are responsible for the variation in monsoon.