Does the atmosphere contain about 78 percent of oxygen true or false?

Answer 1

The atmosphere we breath is actually mostly nitrogen (70% roughly). The 22% of oxygen in the air is used by our body to give the blood cells oxyen which is transported to the parts of the body that use it to make energy by combusting glucose with it. The byproduct, carbon dioxide, is expelled through the lungs. Therefore, the portions of what gases we inhale and exhale are different.

Answer 2

false i keep seeing this answer all over the place with people saying that 78% of the air we breath is oxygen when actually its nitrogen which is 78% and 21% oxygen 1% argon 0.04%(it changes due to humidity) water vapour. no matter what anyone tells you unless its a scientist its 78% nitrogen.

ps: i know this because i just had a science lesson and every textbook and teacher at my high school told me the same.

age 13

Answer 3

yes...sorry, but no, the earth is not mostly made up of oxygen, it is mostly made up of nitrogen, in fact, 78% of the earth's atmosphere is made up of nitrogen

Answer 4

No, Earth's atmosphere is mostly nitrogen, with around 21% oxygen and hydrogen making up much less than 1%.

Answer 5

Atmosphere contain only traces of hydrogen.

Answer 6

False. The atmosphere contains about 21% oxygen.

Answer 7

No, mainly nitrogen

Answer 8

no it is 78% nitrogen and 21% oxygen

Answer 9

Jupiter. :D