a
respiration and combustion
b
combustion and corrosion
c
corrosion and respiration
d
respiration and transpiration
Explanation
Correct Option
bVideo Explanation
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Discussions (4)

Kevin_Aro
3 years ago
The correct answer is B. Nitrogen does not react with other substances under normal conditions, and its presence in air can slow down combustion and corrosion by diluting the concentration of oxygen in the air. Nitrogen makes up about 78% of the Earth's atmosphere, while oxygen makes up about 21%, and other gases make up the remaining 1%.


