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{:(1.,"Infrasonic",-,(a),"Compressions")...

`{:(1.,"Infrasonic",-,(a),"Compressions"),(2.,"Echo",-,(b),22kHz),(3.,"Ultrasonic",-,(c),10Hz),(4.,"High pressure region",-,(d),"Ultrasonography"):}`

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1. (c) 10HZ 2. (d) Ultrasonography 3.(b) 22kHZ 4. (a) Compressions
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FULL MARKS-ACOUSTICS-TEXTUAL EVALUATION (IV. Match the following )
  1. {:(1.,"Infrasonic",-,(a),"Compressions"),(2.,"Echo",-,(b),22kHz),(3.,"...

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