Higher levels of pesticide may be less effective. The pesticides may break down quickly. Water supplies can be contaminated by pesticide runoff. The pesticide will increase the plant production.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When using more than the recommended amounts of pesticide on farmland, yards, and gardens, what is most likely to occur?
Possibilities:
- Higher levels of pesticide may be less effective.
- The pesticides may break down quickly.
- Water supplies can be contaminated by pesticide runoff.
- The pesticide will increase the plant production.

Water supplies can be contaminated by pesticide runoff.