Question

On which day a hot day and a cold day an echo is heard sooner? give reason

Answer 1

Answer:

Explanation:

The speed of sound in air increases with increasing temperature. The speed of sound is more on a hot day than on a cold day. Since, the speed of sound is more on a hot day, therefore we will hear an echo sooner on a hot day than on a cold day

hope it helps

mark me brainliest or thank me.......