Why is the amount of carbon dioxide in air almost constant?

Answer 1

Without getting too technical on this answer the main reason is a physics law known as the Ideal Gas Law.

The law is derived from the fact, that in the ideal state of any gas a given number of its "particles" occupy the same volume, and that volume changes are inverse to pressure changes and linear to temperature changes.

With the basis that gravity is the same at equal distances around the planet the pressure variations allow for all the gases of the earths atmosphere to mix equally.

The currently accepted levels for gases in the earths atmosphere are as follows :

N2 - 78.08%

O2 - 20.95%

H2O - 0 to 4%

Ar - 0.93%

CO2 - 0.0360%

Ne - 0.0018%

He - 0.0005%

CH4 - 0.00017%

H2 - 0.00005%

N2O - 0.00003%

O3 - 0.000004%

Answer 2

Allthough it osccilate little bit but remain constant at 21% with negligible rate due to the cycling of oxygen from plants or photosynthetic organisms to animals or non-photosynthetic organisms

Answer 3

In the absence of human activities, the amount of carbon dioxide (CO2) in the atmosphere remains relatively constant because of what is known as the carbon cycle. Animals breathe out carbon dioxide, but plants absorb carbon dioxide and convert it into living matter, which animals eat, convert back into carbon dioxide and breathe out. This balance is only upset when carbon is extracted from under the ground and converted into carbon dioxide, thus raising the atmospheric concentration.

Answer 4

photosynthesis in plants and respiration in animals will keep the proportion of oxygen constant and thus we can see a balance in the earthly livings

Answer 5

beacuse they both created at the same time

Answer 6

suma nmo bright man kha ka?.....hahahaha