Question

Which one of the following is not a method of in situ conservation of biodiversity?
(A) Biosphere reserve
(B) Wildlife Sanctuary
(C) Botanical garden
(D) Sacred grove

Answer 1

Hint: In the in-situ conservation, the preservation process is done in the natural habitats of different types of plants and animals. Ex-situ conservation is opposite to in-situ conservation. It means off-site conservation and a process of protecting an endangered species, variety of weed and plants or animals outside its natural habitat.

Complete answer:
In-situ also called on-situ conservation involves the conservation of genetic resources in the form of the natural population by establishing biosphere reserves such as national parks and sanctuaries. Horticulture and floriculture are some practices which prevent plants in a natural habitat. This method also allows animals to flourish in their natural habitat and offers them more mobility. Sacred groves are fine-examples of in-situ conservation. Sacred groves are forest fragments, size difference between 0.5-500 hectares, which is protected by religious communities and have a significant religious connotation for the protecting community. Botanical gardens are examples of ex-situ conservation. These are ideal places to practice ex-situ conservation because they have appropriate facilities, skilled horticulturists and botanists. There are currently 1775 botanical gardens in the world. Some of the famous ones in India are Indian botanical garden, Lalbagh botanical garden, National botanical garden, Lucknow, etc.
Hence, the correct answer is option C.

Note: The total opposite of in-situ is ex-situ conservation. The ex-situ conservation includes a botanical garden, zoological garden, conservation stands and genes, pollen, seeds, seedling, tissue culture, DNA banks, etc. Seed banks make the easiest way to store germplasm of wild and cultivated plants at low temperature.