How do these global threats increase the risk of extinction?

The correct choice highlights that global threats, such as climate change, habitat destruction, pollution, and invasive species, can interact in complex ways to disrupt ecosystems. These combined effects may lead to significant changes in the environment that directly impact the survival of various species. For example, alterations in habitat can reduce available resources, while changing climate conditions can affect the timing of reproduction and food availability.

When ecosystems are destabilized, the balance that allows various species to coexist may be disrupted, leading to competition for dwindling resources, increased vulnerability to disease, and ultimately, a higher risk of extinction for those species unable to adapt or relocate. This interconnectedness emphasizes the importance of understanding both individual and collective impacts of these global threats on biodiversity.