Question

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. Why do
they do so?
plz answer​

Answer 1

Answer:

Fish use their gills to take oxygen from the water that they live in. But people get the oxygen we need by breathing air, using our lungs. Whales and dolphins use their lungs to breathe air also. That's one reasons why they come to the surface of the ocean