Refer to the Map

Multiple Choice

Refer to the map. Based on the map, what is the best conclusion that can be drawn regarding levels of NPP in the world oceans?

A) Levels of NPP are equally low throughout the oceans.
B) Levels of NPP are equally high throughout the oceans.
C) Open ocean NPP levels are low; those around coasts are much higher.
D) Open ocean NPP levels are high; those around coasts are much lower.
E) Levels of NPP are highest in the tropics and lowest at high latitudes.