increases the amount of nutrients in the river. provides a better environment for native organisms to grow. keeps the river at balance with nature. threatens the existence of aquatic organisms.
I gave my students this multiple choice question: Some power plants release heated water into rivers. This practice adds thermal energy to the river that most likely

Only one answer is correct among these 4 choices:
- increases the amount of nutrients in the river.
- provides a better environment for native organisms to grow.
- keeps the river at balance with nature.
- threatens the existence of aquatic organisms.

Could you tell me which one is correct?

threatens the existence of aquatic organisms.