Question

Which of the following gases abounds most in the composition of the atmosphere?

• A. Oxygen
• B. Nitrogen
• C. Carbon-dioxide
• D. Hydrogen

Answer 1

The correct option is B Nitrogen

Dry air from atmosphere Earth's 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.

The correct answer is B .