NEET BIOLOGY

Detailed explanation-1: -Carbon moves from one storage reservoir to another through a variety of mechanisms. For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis.

Detailed explanation-2: -In terrestrial communities, plants convert atmospheric carbon dioxide to carbon-based compounds through photosynthesis (see above The photosynthetic process). During this process, plants cleave the carbon from the two oxygen molecules and release the oxygen back into the surrounding environment.

Detailed explanation-3: -Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.

Detailed explanation-4: -Atmospheric carbon dioxide comes from two primary sources-natural and human activities. Natural sources of carbon dioxide include most animals, which exhale carbon dioxide as a waste product.

Detailed explanation-5: -Plants absorb carbon dioxide during photosynthesis and much of this carbon dioxide is then stored in roots, permafrost, grasslands, and forests. Plants and the soil then release carbon dioxide when they decay. Other organisms also release carbon dioxide as they live and die.