Question

(Im in 4th but.. I need to ask this question.) The exchange of oxygen and carbon dioxide between plants and animals is called?

A.Photosynthesis?

B. Carbon dioxide-oxygen cycle?

C. Life cycle?

D. Pollination?

Answer 1

Answer:

B

Explanation:

A is making oxygen

C is life and death

D is making plants grow

Answer 2

Answer:

b because i did this like last week and i still Remember

Explanation: