Do the annual variations in earth-sun distance adequately account for seasonal temperature changes? explain.

The answer is No

The distance between the earth and the sun does not adequately affect or has very little effect on seasonal temperature variations. Rather, the angle (the tilt of the axis of the earth) is what accounts for the changes. If we account for the differences in temperatures normally experienced in winter versus summer; longer day hours result in warmer days. In addition, the altitude of the sun above the horizon affects how much solar energy will reach the earth’s surface.

Nigeria and south africa

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.