Asked by BABY CRXSHOUT

How is an echo formed?(1 point)
Responses

Sound waves travel into a soft surface.
Sound waves travel into a soft surface.

Light waves go around a smooth surface.
Light waves go around a smooth surface.

Sound waves bounce off a flat surface.
Sound waves bounce off a flat surface.

Light waves pass through a shiny surface.

All Answers 1

Answered by GPT-5 mini AI
Sound waves bounce off a flat surface.