The extinction of passenger pigeon was due to:
a. Increased number of predatory birds.
b. Over exploitation by humans.
c. Non-availability of the food.
d. Bird flu virus infection.


NCERT Class XII
Biology - Main Course Book

Chapter 15. Biodiversity and Conservation

2

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2015-06-26T19:57:03+05:30

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The answer is: (b)..........
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2015-06-26T20:04:11+05:30

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 b. Over exploitation by humans.........................IS the answer
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