Ques : Which flightless birds have heavy, solid bones that act like a diver’s weight belt, allowing them to stay underwater for lengths of time?

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Ques : Which flightless birds have heavy, solid bones that act like a diver’s weight belt, allowing them to stay underwater for lengths of time?

A. Penguins

B. Emus

C. Ostriches

D. Cranes

Ans : A. Penguins