[" Q1.Why does a desert cooler cool better on a hot dry day? "],[" Ans.The outer walls of the conler ont "]

A cooler is quite effective on a hot and dry day. Explain.

Why does sound travel faster on a rainy day than on a dry day?

Why does sound travel faster on a rainy day than on a dry day?

(a) Why does sound travel faster on a rainy day than on a dry day? (b) Write the use of radioactive isotopes used in industries?

In places of hot climate it is advised that the outer walls of the house should be painted white. Why?