Question

What is meant by echo???​

Answer 1

Answer:

sound or sounds caused by the reflection of sound waves from a surface back to the listener.

Explanation:

hi siso will u be my friend?

myself Sumouli.

class 9.

age 13 +.

from West Bengal.

Answer 2

Answer:

An echo is a repetition or imitation of sound. When sound waves hit a hard surface they might reflect, making the sound bounce and repeat.

Explanation:

sound that is repeated as it is sent back off a surface such as the wall of a tunnel