A Noisy Workplace Has a Noise Level of 90 DB

question 38

Multiple Choice

A noisy workplace has a noise level of 90 dB.You want to reduce this to a more comfortable 75 dB.By what factor must the power of the noise source be reduced? (That is,what is the ratio of the new power to the old?)

• A)0.83
• B)0.67
• C)0.32
• D)0.032
• E)0.010

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Definitions:

SNPs

Single nucleotide polymorphisms, which are variations at a single position in a DNA sequence among individuals.

Hemophilia A

A genetic disorder caused by a deficiency in clotting factor VIII, resulting in prolonged bleeding following injury or surgery, often affecting males.

Blood Clotting Protein

Proteins in the blood plasma that work in concert to form clots, halting bleeding and initiating wound healing.

Enzyme

Substances in living organisms that accelerate chemical processes without being consumed.