What are two key factors controlling primary productivity in lakes and oceans?
A)light and nutrients
B)nutrients and temperature
C)light and temperature
D)light and phytoplankton
E)nutrients and wind

Question

Quizplus · Accepted Answer

The two key factors controlling primary productivity in lakes and oceans are light and nutrients. Light is necessary for photosynthesis, while nutrients such as nitrogen and phosphorus are required for the growth and reproduction of primary producers such as phytoplankton. Temperature and wind can also impact primary productivity, but they are not considered the primary factors controlling it.

What Are Two Key Factors Controlling Primary Productivity in Lakes