This document discusses various methods for biodiversity conservation, including national parks, sanctuaries, biosphere reserves, zoos, botanical gardens, and gene banks. It defines biodiversity as the variety of life on Earth and its interdependence. National parks strictly protect areas of biodiversity and prohibit activities like forestry and grazing. Sanctuaries also protect biodiversity and allow activities like tourism and research. Biosphere reserves aim to promote sustainable development through local community efforts. Zoos house endangered species for conservation and recreation. Botanical gardens cultivate and display plant diversity. Gene banks preserve genetic material from plants and animals, similar to financial banks preserving money.