Learn about The Carbon Cycle in this educational video from dizzo95.
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Carbon Cycle Carbon dioxide from the air, and water, are linked to form sugars by green plants using the energy of the sun in a process called photosynthesis. Plants are eaten by many animals. Plants are also the food source for fungi and some microorganisms. Fungi use animal feces as a food source, which breaks it down. The decay of fungi and microorganisms in the soil produces humus, an important organic component of soil. Animals, fungi and microorganisms, use oxygen to release the energy locked in sugars and fats in a process called respiration. Respiration releases carbon dioxide and water into the atmosphere.