Why there's a wide difference in temperature between Thardesert and Andaman Nicobar island. I mean to ask that during the day time the temperature of thar desert raise to 50 degree celcius but in night temperature fall to 15 degree celcius whereas tere is any hardly difeeren in temperature at coastal areas.

This variation is because of the following:

a.The sand in the desert areas, during the day time absorbs heat very quickly and after the sun set cools down very quickly.

b. There is a lack of cloud cover on the deserts area as a result, much of the accumulated heat of the day on the ground is lost at night due to radiation.

c. The coastal regions do not experience much variations in temperature due to the moderating effect of seas. Presence of large water bodies helps in moderating temperature as water warms and cools more slowly than land.
 

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