Question

which gas makes up the largest percentage of earth’s atmosphere by volume?\
\bigcirc oxygen\
\bigcirc carbon dioxide\
\bigcirc nitrogen\
\bigcirc water vapor

Explanation:

To determine the gas with the largest percentage in Earth's atmosphere by volume, we refer to atmospheric composition knowledge. Earth's atmosphere is mainly composed of nitrogen (about 78%), oxygen (about 21%), argon, carbon dioxide, water vapor, and other trace gases. Among the given options, nitrogen has the highest volume percentage.

Answer:

Nitrogen (the option labeled "Nitrogen")