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Checkpoint 10.9
Fill in the blanks below with suitable words.
(a) Any unwanted or disturbing sound is called _________ .
(b) The unit of measurement for sound level is (i) _________ ((ii)_____) .
(i)
(ii)
(c) Sound level can be measured with an instrument called the _________ .
(d) Noise can damage our ears and cause hearing loss. The damage depends on the (i) _________ and the (ii) _________ .
(i)
(ii)
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