In addition to oxygen, which gases make up the largest percentage of Earth's atmosphere?

Nitrogen and oxygen are by far the most common; dry air is composed of about 78% nitrogen (N2) and about 21% oxygen (O2). Argon, carbon dioxide (CO2), and many other gases are also present in much lower amounts; each makes up less than 1% of the atmosphere's mixture of gases.

Explanation:

C) Carbon Dioxide, Water Vapor, and Nitrogen

Explanation:

Had a quiz on this :)

answer; i believe the correct answer is (replication is not conservative);