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4 votes
Earth appears to be mostly blue when viewed from space because it is mostly covered by

A) water
B) oxygen
C) carbon dioxide
D) ozone

2 Answers

7 votes
75% of water so I go with A
User Kaslico
by
7.4k points
3 votes
A. Water

Hope this helped:)
User Juergi
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7.5k points