Question

A tree uses gas A to produce Gad B. An animal uses gas B to produce gas A What gas B in this cycle A. Oxygen B. Nitrogen C. Carbon Dioxide D. Carbon Monoxidd

Answer 1

Answer: Oxygen

Step-by-step explanation:

Plants use carbon dioxide and produce oxygen through the process of photosynthesis. Animals (and plants) use oxygen and produce carbon dioxide through the process of cellular respiration.

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Answer 2

A.Oxygen

Step-by-step explanation:

Trees take in Carbon for photosynthesis and as a waste product air.Animals do the exact opposite for cellular respiration.

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