Multiple Choice
W hat would a visitor approaching Earth from space see 4.4 billion years ago?
A) a blue planet due to 71% of its surface being covered by water
B) a hot, vapor-shrouded sphere blanketed by lightning-stroked clouds
C) a supercontinent breaking apart into smaller pieces
D) a landscape dominated by continents with small bodies of water dispersed throughout
Correct Answer:

Verified
Correct Answer:
Verified
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