Sea water is oxygenated on the deep-sea bottom because
A) Bottom sea water originates in shallow water in the tropics, where oxygen is abundant
B) Wind mixes oxygenated water from the surface to the deep sea
C) A small amount of photosynthesis occurs on the deep-sea bed
D) Sea water in the deep sea originates at the surface in high latitudes

Question

Quizplus · Accepted Answer

Deep-sea water is oxygenated because it originates at the surface in high latitudes, where cold, dense, oxygen-rich water sinks and moves along the ocean floor.

Sea Water Is Oxygenated on the Deep-Sea Bottom Because