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4 votes
Northern lights or auroras can be seen within the _____ sub-layer.

A.ozonosphere
B.ionosphere
C.exosphere
D.troposphere

User Jeff Sharp
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2 Answers

3 votes
Northern lights or auroras can be seen within the ionosphere sub-layer. This is the range where cosmic and the Sun's radiation are ionized.
User Marbu
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8.0k points
4 votes
Northern lights or auroras can be seen within the IONOSPHERE sub-layer. So, the answer is B.
User JDawgg
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9.2k points
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