Which statement best describes why the carbon cycle is important to life? A.
Without carbon being returned to the atmosphere, plants eventually would not have the carbon dioxide they need.
B.
Without carbon being cycled, there would soon be no carbon left on Earth, so organisms would not be able to get nutrients.
C.
Without a way to create more carbon, plants and animals would soon have to survive only on nutrients that do not contain carbon.
D.
Without a way to remove carbon from the atmosphere, plants would be harmed by the accumulation of atmospheric carbon dioxide.

D

Explanation:

thats what i think is correct

A

Explanation:

A is the answer as carbon dioxide is needed for plants and most iving beings depends on plants

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

2%? i tried finding the exact sorry if it's not 100% correct ; -;