Consider the following sites related to conservation:

1. Biosphere Reserve

2. Botanical Garden

3. National Park

4. Wildlife Sanctuary

5. Zoo

How many of the above are sites for in-situ conservation of flora?

The correct answer is Option 2.

Key Points

The in-situ method of conservation involves protecting species in their natural habitats. The options are analyzed below:

1. Biosphere Reserves: These are areas designated for the conservation of biodiversity, including flora, in their natural habitats. In-situ method. Hence, 1 is correct.
2. Botanical Garden: These are man-made spaces where plants are cultivated and displayed for conservation and education. Ex-situ method (not in-situ). Hence, 2 is incorrect.
3. National Park: These are protected areas where flora and fauna are conserved in their natural habitats. In-situ method. Hence 3 is correct.
4. Wildlife Sanctuary: These are protected areas focused on conserving wildlife, including flora, in their natural habitats. In-situ method. Hence, 4 is correct.
5. Zoo: Zoos are facilities where animals are kept in controlled environments for conservation and display. Ex-situ method (not in-situ). Hence, 5 is incorrect.