Question

compare the humidity in Chennai to that of Jaisalmer in the thar desert?

Answer 1

hi friend here is ur answer
Chennai being in nearness to the sea, the air there holds more water that dissipates from the sea and encounters substantial precipitation. 

Further Chennai is nearer to the equator and witnesses hot and wet atmosphere causing humidity. 

Jaisalmer, then again, is a desert, with warm and dry atmosphere, it encounters little precipitation and less humidity.
hope this will help u

Answer 2

Chennai has a higher humidity because it is a coastal city. The water vapour from the sea is more, so the humidity is high.

Jaisalmer is located in the interior of India. Since it lies in the Thar Desert, where water quantity is low, not much water vapour occurs due to evaporation. Hence Jaisalmer is dry and arid.