releasing nitrogen in the soil. crowding out non-native species. adding carbon dioxide to the atmosphere. removing water from the soil and returning it to the atmosphere.
I gave my students this multiple choice question: Trees most likely change the environment in which they are located by

Only one answer is correct among these 4 choices:
- releasing nitrogen in the soil.
- crowding out non-native species.
- adding carbon dioxide to the atmosphere.
- removing water from the soil and returning it to the atmosphere.

Could you tell me which one is correct?

removing water from the soil and returning it to the atmosphere.