Consider the following statements:
1. The winds which blow between 30° N and 60° S latitudes throughout the year are known as westerlies.
2. The moist air masses that cause winter rains in North-Western region of India are part of westerlies.
Which of the statements given above is/are correct?
Correct Answer: Option B
Explanation
1. Statement 1: The westerlies are prevailing winds that blow from west to east in the mid-latitudes. In the Northern Hemisphere, they are generally found between 30° N and 60° N latitudes, and in the Southern Hemisphere, between 30° S and 60° S latitudes. The statement incorrectly defines the latitudinal belt as 30° N to 60° S, mixing the hemispheres inappropriately. Therefore, statement 1 is incorrect.
2. Statement 2: The winter rains experienced in the North-Western region of India are caused by Western Disturbances. These are extra-tropical cyclones originating over the Mediterranean Sea and traveling eastward. They bring moist air masses into the region. The movement of these disturbances is guided by the subtropical westerly jet stream, which is a component of the upper air westerlies. Thus, the moist air masses causing these rains are indeed associated with and steered by the westerlies. Therefore, statement 2 is correct.
3. As only statement 2 is correct, the correct option is (B).
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