Question

5.Which are the gases involved in breathing?Required to answer. Single choice.

(1 Point)

O2 and NO2

O2 and SO2

O2 and O3

O2 and CO2​

Answer 1

Answer:

d............

Explanation:

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Answer 2

O2 and NO2

Explanation:

The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.