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Biological remediation and ecosystem restoration are two related approaches used by restoration ecologists to improve habitats that have been degraded by human activities.

Match the following scenarios to the type of restoration activity they BEST describe.

Sunflowers are planted in soil contaminated by a radiation leak from a nuclear power plant.

Lead-contaminated topsoil is dug out and removed from an old mining site and native plants are replanted there.

Bacteria are released to metabolize oil from an oil spill.

Invasive species of grass are removed from a meadow with a controlled fire, and the meadow is then replanted with native grasses and shrubs.

Dams are removed from a watershed and seasonal flooding is allowed.

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