Phytoplankton in the ocean
A) provide much of the planet's oxygen
B) provide much of the planet's carbon dioxide
C) remove much of the planet's carbon dioxide from the atmosphere
D) remove much of the planet's oxygen
E) provide much of the planet's oxygen and remove much of the carbon dioxide from the atmosphere

Question

Quizplus · Accepted Answer

Phytoplankton in the ocean provide much of the planet's oxygen through photosynthesis, and they also remove much of the planet's carbon dioxide from the atmosphere through the same process. Therefore, they provide much of the planet's oxygen and remove much of the carbon dioxide from the atmosphere.

Phytoplankton in the Ocean