Multiple Choice
Approximately how many kilometers (miles) above Earth's surface does the atmosphere end and outer space begin?
A) 47 kilometers (30 miles)
B) 82 kilometers (52 miles)
C) 145 kilometers (90 miles)
D) There is no clearly defined upper limit to the atmosphere; it gradually fades into space.
Correct Answer:
Verified
Correct Answer:
Verified
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