Which gas forms 21% of Earth's atmosphere? A. argon B. carbon dioxide C. nitrogen D. oxygen

asked Jul 7, 2021 43.1k views

0 votes

Which gas forms 21% of Earth's atmosphere?

A.
argon
B.
carbon dioxide
C.
nitrogen
D.
oxygen

by Trusk

7.4k points

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4 votes

Answer:

D.) Oxygen

Step-by-step explanation:

78% Nitrogen 21%Oxygen 1%Inactive gases

Joshweir answered Jul 10, 2021

6.8k points

7 votes

Oxygen is the correct answer

ThomasWeiss answered Jul 11, 2021

7.4k points

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