Evaluate Solutions for Ecosystem Impacts Practice Test

An endangered frog is threatened by habitat loss and an introduced predatory fish that eats tadpoles. A conservation team proposes a combined plan: protect remaining pond habitat from development, remove the predatory fish from key breeding ponds, and breed frogs in captivity to release young frogs back into restored ponds.

Which evaluation best explains why this combined plan is more likely to succeed than captive breeding alone?

A forested watershed supplies drinking water to a town. Logging on steep slopes has increased erosion, making the river muddy and raising water treatment needs. Two strategies are proposed:

Strategy A: Require logging companies to keep trees along stream banks (riparian buffers) and avoid logging steep slopes; replant native vegetation on eroding areas.

Strategy B: Build a larger water filtration plant to remove sediment from the drinking water after it reaches the intake.

Which statement best compares these strategies for long-term effectiveness and sustainability?