Question

why are nonnative species problematic for public lands?
visitors enjoy watching them.
they out - compete native species.
they are cheap to remove.
they get along well with native species.

Explanation:

Nonnative species often lack natural predators in new public land ecosystems, allowing them to out-compete native species for resources like food, water, and habitat, which disrupts the local ecological balance. The other options are incorrect: visitors enjoying them is not a problem, removing nonnative species is typically costly, and they do not get along well with native species as they disrupt the ecosystem.

Answer:

B. They out-compete native species.