What are high and low frequency sounds?

Low-frequency sounds are 500 Hz or lower while high-frequency waves are above 2000 Hz . Human ears can register sounds from about 20 Hz in frequency up to 20,000 Hz, depending of course, upon the hearer. People with hearing loss usually have trouble hearing sounds in the higher frequency range.6 Eki 2017

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What is sound explain?

Sound is a type of energy made by vibrations . When an object vibrates, it causes movement in surrounding air molecules. These molecules bump into the molecules close to them, causing them to vibrate as well. This makes them bump into more nearby air molecules.

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