Which of the following ecologist gave ‘rivet popper’ hypothesis?
David Tillman
Alexander Von Humboldt
Robert May
Paul Ehrlich
Rivet Popper hypothesis given by Paul Ehrlich.
Extinction abetted by human activities is called
How many bio-geographical regions are present in India?
The major man made biotic factor is
Silent valley is tropical evergreen forest located in
Ranthambor national park is situated in
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