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22 June, 12:46

Auroras are lights that appear at earth's northern and southern poles. what is the main cause of an aurora?

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  1. 22 June, 14:23
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    When charged particles from the sun strike atoms in Earth's atmosphere, they cause electrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This causes the aurora to appear.
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