Question

Phytoplankton are primary producers that live just below the ocean's surface. Why are phytoplankton important for the global environment?

A) Phytoplankton lower the amount of atmospheric carbon dioxide by absorbing carbon dioxide.

B) Phytoplankton increase the acidity of ocean water by absorbing carbon dioxide.

C) Phytoplankton reduce the effects of fossil fuel use by using sulfur oxides.

D) Phytoplankton provide a protein source for animals by converting nitrogen to nitrogen oxides.

Answer 1

A because oxygen is required for fish and other aquatic organisms, a decrease in photosynthesis productivity is detrimental to aquatic populations

Answer 2

Phytoplankton lowers the amount of atmospheric carbon dioxide by absorbing carbon dioxide.

Step-by-step explanation:

The oceans influence the climate by absorbing and storing carbon dioxide. Plankton influence the exchange of gases between the atmosphere and the sea.