Explanation:
By using sound absorbing substances we can reduce the echoes.
as we seen in the cinema hall...lol
Answer:
CO2 overabundant gas have humans accumulated in our atmosphere that has caused the greenhouse effect
The speed of a sound wave depends upon the medium through which it travels. In general, sound travels faster through solids than through liquids or gases. Also, the denser the medium, the slower sound will travel through it. The same sound will travel at a different speed on a cold day than it would on a warm day.
Force and displacement must be present according to formula and if asking about components then maybe X and Y
