Question

sound is repeated near hills .why ?
sound is prolonged more in an empty room than in a living room .why ?
those who give correct answer I will sure mark it as brainliest. plz its urgent .

Answer 1

It is because in a furnished room, reverberation occurs less than in a room with no furnishing.
hope it helps.........

Answer 2

The sound is repeated near hills due to reverberation.

The sound effect is prolonged in an empty room because, in a furnished room, reverberation occurs less than in a room with no furniture.

Reverberation:  A reverberation is an echoing sound effect.  This occurs due to the repeated reflection of sound waves hitting different objects.

Alternately, the repeating, often diminished, booming sound that follows the sound of an electric guitar or the thump of a drumstick drum is called reverberation.