Question

In a coastal region the density of air above sea during night is-: a) more than that of land air b)less than that of land air c) same as that of land air d) none of these

Answer 1

Answer:

less than that of land air

Answer 2

Answer: The correct answer is less than that of land air.

Explanation: During the night the temperature is low and because of low temperature the land becomes cool and also the water in the sea becomes cooler but the rate differs as the water cools down slowly as compared to land due to which the air is warmer above the water as compared to the air present above the land surface and it keeps rising which creates pressure difference of low pressure above the sea hence because the air is warmer the density is less as compared to land air and this is exactly reverse during the day.

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