the depth of the water the oxygen levels for fish the amount of minerals in the water the accumulation of organic matter
I gave my students this multiple choice question: Runoff from nearby farms can deposit excess amounts of nutrients into bodies of water such as lakes. This abiotic process will most likely cause a decrease in which aspect of a lake?

Only one answer is correct among these 4 choices:
- the depth of the water
- the oxygen levels for fish
- the amount of minerals in the water
- the accumulation of organic matter

Could you tell me which one is correct?

the oxygen levels for fish