Question

Give Reason

Amount of insolation decreases from equator towards poles?

Answer 1

Insolation comes through vertical rays on equator. Thus, it covers up less space but we feel more heat there when it goes up towards poles, the sun rays become slanting. Needless to say that slanting rays come on the earth covering longer distance. Although, these slanting rays heat up more space, the degree of hotness is felt less. This is the reason why amount of insolation decreases from equator towards poles.