How many notified biosphere reserves are there in India as on Nov 2022?

18

The correct answer is Option (3) - 18

Biosphere Reserves in India are defined as the widespread areas of biodiversity in which flora and fauna are protected. There are a total of 18 Biosphere Reserves in India, and 12 are a part of the UNESCO List of Man & Biosphere Reserves Programme. Biosphere Reserves are areas of coastal and terrestrial or marine ecosystems or their amalgamation.