Here's a problem to solve: 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?

Among the 4 following options, which is the correct answer?

- A: the depth of the water
 
- B: the oxygen levels for fish
 
- C: the amount of minerals in the water
 
- D: the accumulation of organic matter
 