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Solution


Q.

Which among these is the correct combination of aquatic mammals                    [2017]
1 Dolphins, Seals, Trygon  
2 Whales, Dolphins, Seals  
3 Trygon, Whales, Seals  
4 Seals, Dolphins, Sharks  

Ans.

(2)

Whales, dolphins, and seals are examples of aquatic mammals. Trygon and sharks are cartilaginous fishes.