What is the most abundant gas in the atmosphere?
A) Oxygen
B) Nitrogen
C) Methane
D) carbon dioxide
E) water vapor

Question

Quizplus · Accepted Answer

Nitrogen makes up about 78% of the atmosphere, while oxygen only makes up about 21%, with the remaining 1% consisting of trace gases such as argon, carbon dioxide, and others. Methane and carbon dioxide are present in much smaller amounts, while water vapor varies depending on location and weather conditions.

What Is the Most Abundant Gas in the Atmosphere