Due to the earth’s ____, insolation hits the earth at a ____ angle at the poles than at the equator. The energy is therefore more spread over a much ____ area at the poles so is less concentrated and ____. Due to this curve, the insolation also has to pass through ____ atmosphere at the poles. More is therefore lost to absorption and ____ in the atmosphere. Due to the earth’s ____ on its axis, as it orbits the sun, the tropics receive ____ energy all year round whereas the poles receive little or ____ for much of the year. In ____ Regions, snow and ____ cover reflect much more of the solar radiation, giving a ____ albedo effect  whereas in equatorial areas, dense ____ coloured rainforest areas absorb radiation giving a lower ____ effect.

Why do the tropics receive more insolation than the poles?

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