Question

which of the following is present in the atmosphere​

Answer 1

Answer:

Dry air from Earth's atmosphere contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and traces of hydrogen, helium, and other "noble" gases (by volume), but generally a variable amount of water vapor is also present, on average about 1% at sea level.

Answer 2

1) air

2) gases

3) ozone layer

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