Agricultural runoff from a farm carries sediment, nitrates, and phosphates to a nearby river.

Question

Where might some of these substances end up?
A.
in the nearby river
B.
in an ocean hundreds of miles downstream
C.
in a distant river downstream
D.
all of these

Answer 1

D. all of these

Agricultural runoff can flow into nearby water bodies like rivers, streams, or lakes and can eventually make its way downstream to larger bodies of water, including oceans. Thus, substances like sediment, nitrates, and phosphates from the runoff could end up in the nearby river, a distant river downstream, and ultimately in an ocean if it travels far enough.