A researcher is analyzing a sample of ocean water that is particularly rich in nutrients and colder than the other samples of water collected. Based on this information, from which area of the ocean was the water probably taken?
A.
the beginning of an estuary at the mouth of a strong river
B.
an area with high salinity, where very few organisms can survive
C.
near the bottom of the ocean, close to the sea floor
D.
near the ocean’s surface, where atmospheric carbon is absorbed
