Science, asked by kapadiyarizwanabanuj, 18 days ago

please help urgently

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Answered by mahisolanki966

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Answer:

Here's your answer...

Explanation:

12.The loudness is expressed in a unit called decibel (dB). 10 decibels is the normal breathing sound in humans.

13. back and forth

14.the amplitude

15.the larynx

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