Multiple Choice
An aurora (shown below) is produced when 
A) charged particles flow toward the magnetic poles and excite atmospheric gases.
B) swamp gases rise from the Arctic tundra and react with the upper atmosphere.
C) radiation in the Van Allen belts can be seen on a clear,cold night.
D) lightning travels from cloud to cloud rather than cloud to ground.
Correct Answer:
Verified
Correct Answer:
Verified
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