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The aurora borealis is caused by the ____.

A. mesosphere
B. stratosphere
c. thermosphere
D. troposphere

User Leonfs
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2 Answers

4 votes

Answer: ionosphere

Explanation: aurora boreal is is caused by the ionosphere which is a part of the thermosphere

User Kul Bhushan Prasad
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3 votes
Thermosphere I believe but I could be wrong
User JacKeown
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