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Question

Whales and dolphins come to the surface of water to breathe through their _____.

A
nose
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B
gills
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C
blowholes
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D
mouth
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Solution

The correct option is C blowholes
Dolphins and whales have lungs like humans. Lungs cannot take in oxygen dissolved in water. So they come up to the surface of water to breathe in air through their blowholes. These blowholes are nothing but nostrils at the back of their head.

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