Question

1. the gas found in the largest concentration in the troposphere is

oxygen gas
nitrogen gas
argon gas
carbon dioxide gas

Explanation:

The troposphere is the lowest layer of Earth's atmosphere. Nitrogen (\(N_2\)) makes up about 78% of the atmosphere, oxygen (\(O_2\)) about 21%, argon (\(Ar\)) about 0.93%, and carbon dioxide (\(CO_2\)) about 0.04% (and trace amounts of other gases). So nitrogen gas has the largest concentration.

Answer:

Nitrogen gas