The amount of oxygen increases. The amount of methane increases. The amount of water vapor increases. The amount of carbon dioxide increases.
I gave my students this multiple choice question: Which statement best describes the effect deforestation has on Earth's atmosphere?

Only one answer is correct among these 4 choices:
- The amount of oxygen increases.
- The amount of methane increases.
- The amount of water vapor increases.
- The amount of carbon dioxide increases.

Could you tell me which one is correct?

The amount of carbon dioxide increases.