Seudónimo Seudónimo

14-06-2016
Biology

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why do our muscles behind our ears twitch when we hear a sudden loud noise

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Аноним Аноним

14-06-2016

Some sound waves are fast and loud that you can hurt your ear

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halltho halltho

17-06-2016

To make the waves bounce better so they are received better and/or because they hurt your ears

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