Question

Boojho has seen in television programmes that whales and
dolphins release a fountain of water sometimes while moving upwards. Why do they do so?​

Answer 1

Explanation:

Boojho has seen in television programmes that whales and dolphins often come up to the water surface. they even release a fountain of water sometimes while moving upwards. ... This is because they cannot breath in water so again and again they come to surface for oxygen .

Answer 2

Answer:

because they cannot breathe in water so that's why they came up to water surface . and whale and dolphins have lungs like human