Multiple choice general knowledge science & technology

Many animals use sound to find things. What is this system called?

  1. Echolocation

  2. Doppler effect

  3. Ultrasound

  4. Echomilekko
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Echolocation is a biological system where animals emit sound waves and interpret the echoes to navigate and find objects. Bats and dolphins are famous users of echolocation. Doppler effect describes frequency change, ultrasound is high-frequency sound used in imaging, and echomilekko is not a real term.

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