Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Extinction of passenger pigeon (Ictopistus migratorius) is a result of one of the following cause - Sarthaks eConnect
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Extinction of passenger pigeon (Ictopistus migratorius) is a result of one of the following cause

A.

absence of food

B.

presence of predators

C.

over exploitation by humans

D.

bird flu