Which of the following statements is false?

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(B) $1$. Noise is considered an air pollutant because it travels through the air and causes environmental degradation.$2$. Exposure to high sound leve

Vedclass · Accepted Answer

$A$ sound level of $150 \ dB$ is not harmful to humans.

Vedclass · Answer

(B) $1$. Noise is considered an air pollutant because it travels through the air and causes environmental degradation.$2$. Exposure to high sound levels is extremely harmful. $A$ sound level of $150 \ dB$ or more (generated by a jet plane take-off or rocket launch) can permanently damage eardrums and cause severe hearing loss.$3$. Therefore,the statement that $150 \ dB$ is not harmful is false.$4$. Since statement $C$ is true and statement $B$ is false,the option 'Both $B$ and $C$' is incorrect as a choice for the false statement.

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