❓ 문제 According to the passage, which of the following best illustrates the concept of ecological resilience?
- A. A. A forest that returns to its exact original tree species composition after a fire.
- B. B. A wetland that continues to filter water and support wildlife even after shifting from a marsh to a open-water pond.
- C. C. A grassland that remains unchanged despite a prolonged drought.
- D. D. A lake that undergoes a permanent shift to a turbid, algae-filled state after nutrient pollution.