California Supplemental (CSE) Practice Exam

Which factor does not affect wetland health?

1. Pollution

2. Overharvesting of native species

3. Hydrological modification

4. Urban development restrictions

The correct answer is: Urban development restrictions

Wetland health is primarily impacted by various environmental factors that can alter their natural state and ecological balance. Pollution, overharvesting of native species, and hydrological modification all have direct and significant effects on the quality of wetland ecosystems. These factors typically lead to degradation of habitats, loss of biodiversity, and changes in water quality, ultimately harming the overall health of wetlands. In contrast, urban development restrictions do not inherently affect wetland health. In fact, such restrictions are often put in place to protect wetland areas from adverse impacts associated with urbanization and development. By limiting urban sprawl and protecting adjacent lands from development, these restrictions can actually contribute to the conservation and improved health of wetlands. Therefore, urban development restrictions serve a protective role rather than being a detrimental factor in the context of wetland health.