Compared to nonpoint source pollution, point source pollution___ A. comes from many sources.
B. is more difficult to control.
C. can be more readily identified.
D. does not happen near rivers.

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.

i think that d. wind is the answer.   i missed the question when i answered a. currents.