The largest amount of carbon is involved in a) respiration from land organisms.
In the field of biology, respiration can be described as the process in which land organisms breathe out carbon dioxide and take in oxygen. This released carbon dioxide is the largest amount that becomes the source of carbon.
As the population of organisms on land tend to increase, the amount of carbon that is accumulated in the atmosphere also increases. The process of respiration occurs continuously due to which this process is the largest reservoir for the amount of carbon in the atmosphere. Hence, option a is correct. Without respiration, the amount of carbon that is accumulated in the atmosphere would have been much lower.
The question will correctly be written as:
The largest amount of carbon is involved in respiration from land organisms.
a) natural fire.
b) biological processes in the oceans.
c) fossil fuels.
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