Why is the energy of the sun less intense at the poles as compared to the equator?

1 Answer

Intensity of light is maximum when it strikes at 90 degrees. It comes down at higher latitudes and at Poles it is minimum.

Explanation:

At low striking angle the light is spread over large area so the intensity is reduced.See the yellow lines in the picture.enter image source here picture 17 dcus blogspot.com.