Question

Which among the following statements are true regarding movement of air in costal regions?

• A. During daytime, air from sea moves towards land due to the low pressure region formed in land.
• B. During daytime, air from land moves towards sea due to the low pressure region formed in sea.
• C. At night, the air above sea cools before that of the air above land.
• D. At night, air above land cools down before that of the air above sea.

Answer 1

Answer: (A), (D)

The correct options are
A During daytime, air from sea moves towards land due to the low pressure region formed in land.
D At night, air above land cools down before that of the air above sea.

During the day, the air above land gets heated and rises to create a low-pressure region. The air from the sea moves to this low-pressure area thus we feel a slight breeze towards the coastal region throughout the day.
At night, the air above land cools faster than that above the sea. Thus air above water would be warmer than the air above land.