Multiple choice

Directions: The following items consist of two statements, one labelled as 'Assertion (A)' and the other labelled as 'Reason (R)'. You are to examine these two statements carefully and decide if the Assertion (A) and the Reason (R) are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answer to these items using the codes given below. Assertion (A) : Considering the world's wind systems, the westerlies normally blow between 40oC to 60oC latitudes. Reason (R) : The flow of air from sub-tropical high pressure cells to the temperature zone of pressure leads to the formation of mid-latitudinal plane wind system.

  1. Both A and R are true and R is the correct explanation of A.

  2. Both A and R are correct but R is not the correct explanation of A.

  3. A is true but R is false.

  4. A is false but R is true.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The westerlies do blow between 40° to 60° latitudes in both hemispheres. Reason R explains this correctly - air flows from subtropical high-pressure belts (around 30°) toward subpolar low-pressure zones (around 60°), creating the mid-latitude westerly wind system. The Coriolis effect deflects this flow to the west, creating westerlies.

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