Question

give reason for 1) outer walls on the building in plains are pointed while​

Answer 1

In places of hot climate, it is advised that the outer walls of house be painted white because white colour does not absorb any heat radiation from the sun which keep inside cool even if there is hot climate outside the house.

Answer 2

Answer:

In places of hot climate the outer walls of the house are painted white as we know that the white colour reflects the rays of the sun where as darker colours absorb the heat rays so if dark colours are painted then the outer walls will absorb the heat and the house will get warmer whereas house with lighter or white colours will reflect heat so the house will be comparatively cooler.

Explanation:

hope it helps!