Question

Dodo, passenger pigeon and Steller's sea cow became extinct in the last $500$ years due to

• A. habitat destruction
• B. over-exploitation
• C. bird-flu virus infection
• D. pollution

Answer 1

Answer: (B)

over-exploitation

Answer 2

Excessive exploitation of a species, whether a plant or animal reduces size of its population such that it becomes vulnerable to extinction. Dodo, passenger pigeon and Steller's sea cow have become extinct in the last $500$ years due to overexploitation by humans.