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It causes day and night, which effects many things, because the Sun gives energy. For humans, solar electricity cannot be produced. They do not have extraordinary eye sight and so daily activities can not be performed as well. Humans also need rest and therefore become dormant at night. Plants need the Sun for food. They have a chemical in them called chlorophyll which is used in photosynthesis. They need the Sun's light to perform this. Reptiles, amphibians and others animals (not birds or mammals) rely on the Sun for energy as they are cold blooded and can not control their core temperature. They therefore need the Sun to gain energy and only move about in the day. Overall, the Earth's rotation has many effects on animals, plants and humans, especially on their energy levels and performance.

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12y ago

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