Compléter The soundVersion en ligne Fill in the gaps about the sound. par Mª Ángeles Alonso Fernández 1 vibrates hearing speeds membrane eardrum outer second Music is sound . Sound is produced when an object and it is what can perceived by a living organism through its sense of . Sound propagates at high . The waves travel through the air at 340 meters per ( . . . ) Sounds are picked up by a very thin in our ear , the , which connects the and middle ear .
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