Net primary productivity is greatest in the oceans ________.
A) where nutrients are greatest
B) in the tropics
C) in the middle latitudes
D) in the polar latitudes
E) where nutrients are least

Question

Quizplus · Accepted Answer

Nutrients, such as nitrogen and phosphorus, are vital for the growth of phytoplankton which forms the base of the ocean food web. Therefore, areas where nutrient levels are high, such as upwellings (where cold, nutrient-rich water rises to the surface) and estuaries (where rivers bring in nutrients from land), have high levels of primary productivity.

Net Primary Productivity Is Greatest in the Oceans ________