Which of the following could be a result of improper pesticide use?

Improper pesticide use can lead to environmental damage in several ways. When pesticides are applied incorrectly, they can contaminate soil, water, and non-target organisms, affecting entire ecosystems. For instance, runoff from treated areas can introduce harmful chemicals into nearby waterways, impacting aquatic life and potentially entering the human food chain. Additionally, misapplication may result in the loss of beneficial insects, which play crucial roles in pollination and pest control, thus disrupting the balance of local biodiversity.

On the other hand, effective pest control, improved crop yields, and increased biodiversity are generally associated with the proper application of pesticides and integrated pest management strategies rather than the consequences of improper use. Proper techniques and adherence to guidelines ensure that pest management contributes positively to agricultural practices and the environment.