Question

what were the two passes used by the people of Central Asia to enter Indus Valley in past​

Answer 1

Audible Sounds are the sounds of frequency which are audible to the human ear. ... Inaudible sounds are the sounds of frequency which are not audible to the human ear. The frequency of inaudible sounds is below20Hzand greater than20kHz.

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Answer 2

Audible Sounds are the sounds of frequency which are audible to the human ear. ... Inaudible sounds are the sounds of frequency which are not audible to the human ear. The frequency of inaudible sounds is below20Hzand greater than20kHz.

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