DSST Environmental Science Practice Exam

The approach that involves killing invasive plants and planting native species is effective because it directly addresses the problem posed by invasive species. Invasive plants often outcompete native flora for resources such as sunlight, water, and nutrients, leading to a decline in biodiversity and the degradation of ecosystems. By removing invasive plants, the native species have a chance to regenerate and reclaim their ecological niche, helping to restore the balance of the ecosystem.

Moreover, planting native species is crucial because these plants are well-adapted to the local environment and can thrive without the pressures of invasive competition. They also provide habitat and food for local wildlife, which further supports the recovery of the ecosystem. This strategy not only aids in restoring the ecological integrity of the area but also enhances its resilience against future invasions.

In contrast, maximizing animal grazing could lead to further degradation of the land if not managed properly, as overgrazing can damage vegetation and soil quality. Planting only invasive plants would exacerbate the problem, increasing the dominance of non-native species and worsening the biodiversity crisis. Ignoring land recovery efforts would allow the invasive species to continue their spread unchecked, leading to long-term ecological damage. Thus, the method of eliminating invasive species while reintroducing native plants stands out as