What is the gas that makes up most of the air that we breathe?
A) carbon dioxide
B) ozone
C) nitrogen
D) oxygen
E) argon

Name: What is the gas that makes up most of the air that we breathe? A) carbon dioxide B) ozone C) nitrogen D) oxygen E) argon
Brand: Quizplus
Rating: 4.7 (41 reviews)

Question

What is the gas that makes up most of the air that we breathe?​
A) ​carbon dioxide
B) ​ozone
C) ​nitrogen
D) ​oxygen
E) argon​

Quizplus · Accepted Answer

Nitrogen makes up around 78% of the air we breathe, while oxygen only makes up about 21%. Carbon dioxide, ozone, and argon are present in much smaller amounts.

What Is the Gas That Makes Up Most of the Air