The aurora borealis (northern lights)are caused by

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Quizplus · Accepted Answer

The aurora borealis is caused by emissions from atoms and molecules in the upper atmosphere excited by electrons from the Sun. These emissions are typically in the form of green and pink light, although other colors can also be observed. Sunlight reflecting from polar ice and thunderstorms are not related to the formation of the aurora borealis. The exact process of how electrons from the Sun excite the atoms and molecules in the upper atmosphere is well-known by researchers.

The Aurora Borealis (Northern Lights)are Caused by