Question

Phytoplankton are single-celled, photosynthetic organisms living at the surface of the ocean. How do phytoplankton affect the Earth's carbon and oxygen cycles when they perform photosynthesis?
A. They remove both carbon dioxide and oxygen from the atmosphere.
B. They add oxygen to and remove carbon dioxide from the atmosphere.
C. They add both carbon dioxide and oxygen to the atmosphere.
D. They add carbon dioxide to and remove oxygen from the atmosphere.

Answer 1

Answer:

option B is right one

explanation : Phytoplankton also form the base of virtually every ocean food web. In short, they make most other ocean life possible. Through photosynthesis these organisms transform inorganic carbon in the atmosphere and in seawater into organic compounds, making them an essential part of Earth's carbon cycle.

OR

Phytoplankton are single-celled, photosynthetic organisms living at the surface of the ocean. How do phytoplankton affect the Earth's carbon and oxygen cycles when they perform photosynthesis? Phytoplankton add oxygen to and remove carbon dioxide from the atmosphere when they perform photosynthesis.

Answer 2

Answer:

They add oxygen to and remove carbon dioxide from the atmosphere.

Explanation:

Hope this helps!!