Question

which of the following best describe how monsoons develop?
a warm, moist air descends from the mountains in northern india.
b cool, drier air ascends above the land mass in india.
c cool, moist air is drawn in from the ocean and is lifted up above india.

Explanation:

Monsoons develop due to temperature differences between land and sea. During summer, land heats up faster than water. Warm air over land rises, creating a low - pressure area. Cool, moist air from the ocean (which has relatively higher pressure) is then drawn in. This air is lifted (as it moves over land and is forced to rise due to terrain or the general upward motion in the low - pressure system).

• Option A is incorrect because warm, moist air ascending (not descending) is a key part of monsoon development.
• Option B is incorrect as it is warm air (not cool, drier air) that ascends over the land mass during the relevant part of monsoon formation.

Answer:

C. Cool, moist air is drawn in from the ocean and is lifted up above India.