Question

Why does the amount of heat reduce as we go from the equator to the North Pole
or South Pole?

Answer 1

Here temperatures are somewhat cooler (less direct Sun and less evaporation) than those found on say the south-facing slopes in the Northern Hemisphere. ... So that in this example, if the Sun is directly overhead the Equator, light will be visible 90 degrees to each pole.

Answer 2

sun rays stands direct to equator,as well extreme temperature takes place.But when we go from equator to north pole or south pole the sun rays will slantly and low temperature.