Concept:An artificial wetland is a man‑made ecosystem that supports biodiversity, especially migratory birds.
Explanation:- Keoladeo National Park in Bharatpur, Rajasthan, is a UNESCO World Heritage Site.
- It was declared a national park in 1982.
- The park is famous for its artificial wetland, which is crucial for hosting thousands of birds, particularly in winter.
- The wetland helps maintain ecological balance, treat wastewater, and provide habitat for many species.
- Conservation efforts include water management and habitat restoration.
Answer:A. Keoladeo National Park