Question

what percent of the atmosphere is made up of carbon dioxide​

Answer 1

Answer:

According to NASA, the gases in Earth's atmosphere include:

Nitrogen — 78 percent

Oxygen — 21 percent

Argon — 0.93 percent

Carbon dioxide — 0.04 percent

Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor

Thus, the percentage is 0.04 %