What causes the northern and southern lights?

Earth's atmosphere is mostly made up of nitrogen and oxygen. Once the solar particles reach Earth's atmosphere, they collide with atoms of nitrogen and oxygen, stripping away their electrons to leave ions in excited states. These ions emit radiation at various wavelengths, creating the characteristic colors.

Explanation:

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rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds