Question

How do the areas of sunlight in the two hemispheres change over the year?

Answer 1

The Earth spins on its axis but does not change direction of its axis as it revolves around the sun.This means that, for part of the year, the north pole is pointed away from the sun and so in perpetual shadow, while the south pole is pointed toward the sun, and thus in perpetual daylight. During the opposite time of the year, although the Earth's tilt hasn't changed, the position of the sun relative to the Earth has, so the situation is reversed. Away from the poles, the effects are less extreme, but nonetheless, the days are longer in the summer than in the winter and the sun is higher in the sky, and one hemisphere's summer is also the other's winter and vice-versa.

Answer 2

As the Earth rotates around the sun, the areas of sunlight change.

You've probably noticed where you live that the days during the winter are always shorter and the days during the summer are always longer, every year.The Earth's axis has a slight tilt to it and the axis tilt never changes even when the Earth rotates daily and yearly.

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