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Which combination of gases dominates Earth’s atmosphere? A>argon (78.50%), oxygen (20.90%) B>nitrogen (78.10%), oxygen (20.90%) C>carbon dioxide (78.15%), oxygen (20.90%) D>methane (50.10%), oxygen (49.
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2 votes
Which combination of gases dominates Earth’s atmosphere?

A>argon (78.50%), oxygen (20.90%)
B>nitrogen (78.10%), oxygen (20.90%)
C>carbon dioxide (78.15%), oxygen (20.90%)
D>methane (50.10%), oxygen (49.9%)
E>nitrogen (20.9%), oxygen (78.10%)

User MuhammadBassio
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2 Answers

3 votes

Answer: b

Step-by-step explanation:

User Robert Rose
by
8.2k points
4 votes
The answer is B. Because the Earth’s atmosphere is mostly nitrogen and oxygen.
User Hayt
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8.5k points
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