What is a potential environmental impact of pesticide overuse?

The choice that highlights biodiversity loss as a potential environmental impact of pesticide overuse is correct due to the significant effects that pesticides have on non-target organisms in ecosystems. When pesticides are applied extensively, they not only eliminate the intended pest species but can also harm beneficial insects, birds, amphibians, and other wildlife that play key roles in maintaining ecological balance. This disruption can lead to diminished populations of these species, affecting pollination, natural pest control, and the overall health of ecosystems.

Additionally, the loss of biodiversity can lead to monocultures, where a single crop variety dominates an area, making the environment more susceptible to diseases and pests that can thrive in such settings. This further complicates agricultural sustainability and resilience, highlighting how overuse of pesticides can create a cycle of dependence on chemical interventions rather than fostering a balanced ecological system where natural processes can flourish.

In contrast, the other options do not accurately reflect the consequences of pesticide overuse. Increased soil fertility is typically not a result of pesticide application, as these chemicals can degrade soil health over time. Improved water retention is also unlikely, since pesticides can disrupt soil structure and microbiome health, potentially leading to reduced water absorption. While pesticide applications aim to reduce pest populations, the unintended consequences often include broader