Carbon cycles through the biosphere in all of the following processes except
a. photosynthesis.
c. burning of fossil fuels.
b. transpiration.
d. decomposition of plants and animals.

The correct answer is transpiration.

Explanation:

All the living things are formed of carbon. Carbon is the essential component found in the air, ocean, and even in rocks. As Earth is a dynamic place, carbon does not remain still and is continuously on the move. In the atmosphere, carbon is found in the form of carbon dioxide.  

Plants utilize sunlight and carbon dioxide to produce their own food and grow, the process known as photosynthesis. Thus, the carbon becomes the component of the plant. The animals consume plants and thus also take up carbon. The plants and animals that die and get buried may get converted into fossil fuels formed of carbon like oil and coal over millions of years.  

When fossil fuels are burnt by humans, the majority of the carbon briskly gets entered into the atmosphere in the form of carbon dioxide. Of the mentioned options, transpiration does not play any role in the cycling of carbon through the biosphere. It is the procedure of the movement of water and its evaporation from the aerial parts like stems, leaves, and flowers.  

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