Question

Q. Consider the following statements with reference to jet streams, which of the statement(s) is/are correct?

Select the correct answer using the code given below:

• A. 1 and 3 only
• B. 3 only
• C. 2 only
• D. 1, 2 and 3

Answer 1

The correct option is B 3 only

Explanation:

• Statement 1 is incorrect. Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. Jet streams travel in the tropopause—the area between the troposphere and the stratosphere—at heights of about 8 to 15 kilometers (5 to 9 miles).
• Statement 2 is incorrect: There is no jet stream over the equator.
• Statement 3 is correct: Jet streams are stronger in winter in the northern and southern hemispheres, because that's when air temperature differences that drive them to tend to be most pronounced.