A. National Park
A.
B. Biosphere Reserve
B.
C. Botanical Garden
C.
D. Sacred Groves
D.
Correct Answer: C
সঠিক উত্তর: C
Explanation
ব্যাখ্যা
Botanical Gardens are an example of ex-situ conservation because they involve the preservation of plant species outside their natural habitats in a controlled environment. This method is particularly useful for endangered or rare species, allowing for research, propagation, and potential reintroduction into the wild.