Question

why are invasive species dangerous to the environment?
they pollute the environment.
they are all voracious predators.
they threaten biodiversity.
they are nonrenewable.

Explanation:

• Option 1: Invasive species don't primarily pollute the environment; pollution is from other sources like chemicals.
• Option 2: Not all invasive species are voracious predators; some compete for resources, etc.
• Option 3: Invasive species outcompete native species, disrupting ecosystems and reducing biodiversity, so this is correct.
• Option 4: Invasive species are living organisms, not nonrenewable (nonrenewable refers to resources like fossil fuels).

Answer:

C. They threaten biodiversity.