Any Sound Above _____ Db Is Enough to Produce Hearing

question 159

Multiple Choice

Any sound above _____ db is enough to produce hearing damage,depending on the length and type of exposure.

• A)45
• B)70
• C)85
• D)100

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Definitions:

Amines

Organic compounds and functional groups that contain a basic nitrogen atom with a lone pair, derived from ammonia by replacement of one or more hydrogen atoms with organic groups.

Trimethylamine

A nitrogen-containing organic compound characterized by a strong fishy odor, used in the synthesis of various chemical products.

3-Pentanamine

A chemical compound characterized by a five-carbon chain with an amine group attached to the third carbon.

Reaction

A process in which substances interact to form new compounds or to change their physical or chemical properties.