In which Biosphere Reserve is the largest endangered marine mammal Dugong i.e., Dugong dugon and sea turtles also found?

Correct option is D

The correct answer is (d) Gulf of Mannar Biosphere Reserve.
 Gulf of Mannar Biosphere Reserve is known for its rich marine biodiversity. It is located in the southeastern tip of India, between India and Sri Lanka.
 It is home to the largest population of the endangered marine mammal Dugong (Dugong dugon) and various species of sea turtles, including the green sea turtle, hawksbill turtle, and olive ridley turtle.
 The reserve includes 21 islands and adjacent coral reefs, seagrass beds, and mangroves, providing a habitat for these marine species.
Information Booster:
 Khangchendzonga Biosphere Reserve: Located in Sikkim, it is known for its diverse terrestrial biodiversity, including the red panda and snow leopard, but not for marine mammals like the dugong.
 Seshachalam Biosphere Reserve: Located in Andhra Pradesh, it is known for its rich flora, including several endemic plant species, but not for marine species.
 Pachmarhi Biosphere Reserve: Located in Madhya Pradesh, it is known for its terrestrial biodiversity, including tigers and leopards, but not for marine species.