Sagot :
SOUND
Note: Since your question is confusing, vague and incomplete, I will just give the meaning and characteristics of sound.
SPEED AND CHARACTERISTICS
The speed of sound actually varies widely, because it greatly depends on the tempersture and medium it is traveling through, but in 20°C of air the speed of sound is approximately 343 metres per second.
Sound is a mechanical wave, meaning it can only travel through a medium unlike light or electromagnetic waves that can travel through vacuum of space
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