How is carbon dioxide removed from the atmosphere, and then returned to the atmosphere?

ANSWER:

Carbon dioxide is released from the earth through the earth's interior such as volcanoes, and by burning of fossil fuels and carbon materials. Again, Carbon dioxide returns to the atmosphere through organisms as they need it for respiration. Algae, plants, and microorganisms need carbon dioxide to respire.

EXPLANATION:

Carbon dioxide is a greenhouse gas which is the main source of carbon for plants and trees. It helps to trap infrared radiation in the upper atmosphere, and also has a vital role in the ecosystem and weathering of the rocks.

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