Question

Which of the following states correctly describes the process of photosynthesis and cellular respiration

A. respiration creates a high level of carbon dioxide in the atmosphere

B. photosynthesis and respiration keep the levels of oxygen and carbon dioxide fairly constant in the atmosphere

C. photosynthesis creates a high level of oxygen in the atmosphere ​

Answer 1

B. photosynthesis and respiration keep the levels of oxygen and carbon dioxide fairly constant in the atmosphere.

Step-by-step explanation: