Carbon is returned to the atmosphere through a. dissolution of carbon dioxide in water b. photosynthesis c. respiration of plants and animals d. all of these

the answer Is d. photosynthesis brings it up and down carbon diffusion brings it up and down again. plants breath in carbon. but animals breath out carbon

C

respiration of plants and animals

explanation:

it is correct on study island

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.