Question

In places of hot climate it is advised that the outer walls of houses be painted white. Explain.

Answer 1

In places of hot climate, it is advised to paint the outer walls of houses as white because a light colour such as white reflects back most of the heat that falls on it. Hence, a light colour tends to keep the house cool.

Answer 2

In places of hot climate it is advised that the outer wall of houses be painted white because white colour reflects heat and the houses do not heat up too much