Which approach is not applied for ex situ conservation?

The correct answer is Option (3) → National parks

Biodiversity is conserved in two ways. In in situ (on site) conservation, species are protected in their natural habitat, so the whole ecosystem is protected. Ex situ (off site) conservation works outside the natural habitat.

Option (1) Zoological parks — An approach of ex situ conservation. Animals are kept in enclosures away from the wild. Some animals that are extinct in the wild survive only in zoos.

Option (2) Botanical gardens — An approach of ex situ conservation. Plants are grown and cared for outside their natural habitat.

Option (3) National parks — Not an approach of ex situ conservation. A national park is a legally protected natural area, where animals and plants live in their own habitat. So it is an approach of in situ conservation, like biosphere reserves and wildlife sanctuaries.

Option (4) Wildlife safari parks — An approach of ex situ conservation. Animals are kept in large fenced areas set up by people, outside their natural habitat.

Note: A similar question was also asked in CUET (UG) 2026 on 22-05-2026 (Slot 2).

NCERT Extract:
How Do We Conserve Biodiversity? – …