Bats are able to fly in the dark with the help of
-
Infra Red rays
-
Ultrasonic waves
-
Sound waves
-
Ultra Violet rays
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.