Which of the following is an example of ex-situ conservation?
- A.Biosphere reserve
- B.Wildlife sanctuary
- C.National park
- D.Botanical garden
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Explanation
The correct answer is D, a botanical garden. Ex-situ conservation means keeping a species, or only its germplasm, outside its natural habitat, which is what a botanical garden, a zoo, an aquarium, a seed bank, a gene bank or a conservation breeding centre does. Option A is wrong because a biosphere reserve conserves a whole landscape with its core, buffer and transition zones, which is in-situ conservation. Option B is wrong because a wildlife sanctuary protects animals where they live, with limited human activity allowed, again in-situ. Option C is wrong because a national park is the strictest form of in-situ protection, where grazing and private rights are not permitted. The quickest test is to ask whether the species stays in its habitat; if it does, the method is in-situ.