Question

it is crucial to study ocean microbes because _______. a. they control the major biogeochemical cycles that keep earth’s biosphere in balance b. they are a significant source of greenhouse gases and pollution c. they are frequently used as food sources in developing nations d. they provide a significant alternative energy source used to replace coal and oil please select the best answer from the choices provided

Explanation:

Ocean microbes play a key - role in biogeochemical cycles that maintain the balance of Earth's biosphere. They are not major sources of greenhouse gases and pollution, not common food sources in developing nations, and not significant alternative energy sources to replace coal and oil.

Answer:

A. they control the major biogeochemical cycles that keep Earth’s biosphere in balance