Question

whales and dolphins often come up to the water surface. they even release a fountain of water sometimes while moving upwords. why do they do so
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Answer 1

Answer:

Whales and dolphins belongs to same category. They both can come up to the surface of water or ocean and also ejects the stream of water wile moving upwards. This is mainly because they tend to breathe the fresh air and ejects carbon dioxide. ... And when they breathe air out of it, it appears like a fountain of water.

Explanation:

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