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प्रश्न
The material generally used for sound proofing of rooms like a recording studio and auditorium is ______.
पर्याय
cotton
coir
wood
styrofoam
MCQ
रिकाम्या जागा भरा
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उत्तर
The material generally used for sound proofing of rooms like a recording studio and auditorium is styrofoam.
shaalaa.com
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