Question

Why whales and dolphins use sound to communicate even when they are hundreds of kilometers away?​

Answer 1

Answer:

It is extremely beneficial for toothed whales and dolphins to use echolocation in the ocean because sound travels five times faster in water than it does air. Echolocation allows the whales and dolphins to get a good idea of the layout of their environment and also locate prey that can be kilometers away.

Explanation:

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Answer 2

Answer:

whales produces infra sonic sound i.e below 20 Hz and this sound travels very fast in water and can travel for a far way why do they produce sound becz if they are in danger they ask for the help for if they got something to eat then also they can produce this sound

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