It reduces the amount of carbon dioxide production. It reduces the production of oxygen. It decreases the greenhouse effect. It decreases pollutants in the air.
I gave my students this multiple choice question: Forests have been cut and burned so that the land can be used to raise crops. Which consequence does this activity have on the atmosphere of Earth?

Only one answer is correct among these 4 choices:
- It reduces the amount of carbon dioxide production.
- It reduces the production of oxygen.
- It decreases the greenhouse effect.
- It decreases pollutants in the air.

Could you tell me which one is correct?

It reduces the production of oxygen.