Carbon is most abundant in the and
a. lithosphere
b. core
c. atmosphere
d. cyrosphere

Carbon is most abundant in the atmosphere and core.

In the earth's biosphere hydrogen, nitrogen, oxygen and carbon are the most abundant.

the most abundant gas in the atmosphere is nitrogen followed by oxygen.

Carbon is being added to the atmosphere through burning of fossils like gas, coal, and oil.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.