Multiple choice general knowledge

Bats are able to fly in the dark with the help of

  1. Infra Red rays

  2. Ultrasonic waves

  3. Sound waves

  4. Ultra Violet rays

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bats use ultrasonic waves (echolocation) - they emit high-frequency sound waves above human hearing range and navigate by interpreting the echoes. This is different from infrared or ultraviolet which are electromagnetic waves.