The Himalayan Range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?
AIt has a high rainfall that supports luxuriant vegetative growth
BIt is a confluence of different biogeographical zones
CExotic and invasive species have not been introduced in this region
DIt has less human interference
Answer & Solution
Correct answer: B. It is a confluence of different biogeographical zones
UPSC CSE Prelims 2011 (GS-I, Set A), Q.24. Official answer key: B.
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