Sonar

Sonar and Sound Pollution.

Even if its birds talking and dogs barking cicadas making weird noises. But animals that a underwater is hard to communicate.

There is thing called Sonar, sonar helps humans to find shipwrecks and undiscovered things. In the middle of all the sonar is underwater creatures like whales dolphins and other animals that use echolocation.

Sonar stands for sound navigation. Sonar was used to find the plane flight MH730