Define :-
1] Zoological park
2] Wildlife Sanctuary
3] Biosphere Reserve
Zoological park is an artificial facility where animals are kept in enclosures and shown to the public.
Wildlife sanctuary are areas where animals are protected from any disturbance to them and their habitat. It is a natural facility.
Biosphere reserves are large areas of protected land for conservation of wild life, plant and animal resources and traditional life of the tribals living in the area. It is also a natural facility.