Question

Plants made the oxygen in the air animals use to breathe by

Answer 1

Answer:

I would say B. Splitting apart carbon dioxide

Explanation:

Plants are able to use the energy of sunlight to convert carbon dioxide and water into carbohydrates and oxygen in a process called photosynthesis. This means that plants "breathe" in carbon dioxide and "breathe" out oxygen. Animals form the other half of the oxygen cycle.