Q.

The primary source of carbohydrates are –

A. Marine animals
B. Plants
C. Coal-tar
D. Crude oil
Answer» B. Plants
Explanation: Plants are the primary sources of carbohydrates. They produce carbohydrates by photosynthesis which is the source of energy for nearly all life on earth, either directly, through primary production, or indirectly, as the ultimate source of the energy in their food.
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