Question

What two gases make up most of the air?​

Answer 1

Answer:

Composition of air

Nitrogen — 78 percent.

Oxygen — 21 percent.

Argon — 0.93 percent.

Carbon dioxide — 0.04 percent.

Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor.

Answer 2

Answer:

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