Give three factors that causes variation in the radiation reaching the earth's surface

What causes variation in the radiation reaching the earth's surface?

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1. Intensity of the sun's radiation in space and the average distance from the sun

2. The transparency of the atmosphere (transmission, absorption, scattering and reflection of the sun's rays)

3. The angle of the surface on which the sun's rays fall

4. The area and nature of the surface in which sun's rays fall

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johnmulu answered the question on January 13, 2017 at 10:07

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