The angle of incidence, the angle between incoming beams of sunlight and the Earth's surface, varies with

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The angle of incidence varies with latitude, as the Earth's surface is curved and the sunlight hits it at different angles at different latitudes. The angle of incidence is steepest at the equator and gradually decreases towards the poles. Distance from the sun and abundance of carbon dioxide do not directly affect the angle of incidence. Longitude does not have a direct impact on the angle of incidence as it only refers to the east-west position on the Earth's surface.

The Angle of Incidence, the Angle Between Incoming Beams of Sunlight