Question

How is an echo formed?(1 point) Responses Light waves go around a smooth surface. Light waves go around a smooth surface. Light waves pass through a shiny surface. Light waves pass through a shiny surface. Sound waves travel into a soft surface. Sound waves travel into a soft surface. Sound waves bounce off a flat surface

Answer 1

[AI-generated answer — Bot GPT 3.5]

of sufficient size and reflect back to the source.