Question

which gas forms approximately 1%of the atmosphere?​

Answer 1

Answer:

Gases in 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.

Answer 2

Argon

hope it would be helpful for u