Plants and animals eventually die and decompose or are killed and turned into useful products
Plants and animals are decomposed by microorganisms which release CO2 when they respire
Explanation:
When plants and animals die, they become food for decomposers like bacteria, fungi, and earthworms. Decomposers or saprotrophs recycle dead plants and animals into chemical nutrients like carbon and nitrogen that are released back into the soil, air, and water.
