Reduction of noise in cbse 12 biology our industries can be affected by use of sound absorbing materials. explanation
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brief exposure to extremely high sound level, 150 dB or more generated by take off of a jet plane or rocket, may damage ear drums thus permanently impairing hearing ability. ... Reduction of noise in our industries can be affected by use of sound- absorbent materials or by muffling noise.
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A promise is an object which can be returned synchronously from an asynchronous function. It will be in one of 3 possible states: Fulfilled: onFulfilled() will be called (e.g., resolve() was called) Rejected: onRejected() will be called (e.g., reject() was called).
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