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Q.

Approximately, what decibels of sound is generated by jet planes or rockets by their take off?

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a

50 dB

b

70 dB

c

90 dB

d

150 dB

answer is D.

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Detailed Solution

150 dB or more generated is by take off of a jet plane or rocket. A brief exposure to such extremely high sound level,  may damage ear drums thus permanently impairing hearing ability.

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