If these are the percentage of gases you breathe in, what will the percentage of the gases you breathe out be? Nitrogen = 78% Oxygen = 21% Carbon Dioxide = 0.04%

A: Nitrogen = 78% Oxygen = 21% Carbon Dioxide = 0.04%
B: Nitrogen = 78% Oxygen = 16% Carbon Dioxide = 4%
C: Nitrogen = 99% Oxygen = 0% Carbon Dioxide = 0.04%
D: Nitrogen = 50% Oxygen = 25% Carbon Dioxide = 25%

a

Explanation:

By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

Composition of air

Nitrogen — 78 percent. Oxygen — 21 percent. Argon — 0.93 percent. Carbon dioxide — 0.04 percent.

the answer is :