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dB is a standard abbreviation used for the quantitative expression of

dB is a standard abbreviation used for the quantitative expression of

Options

(a) the density of bacteria in a medium
(b) a particular pollutant
(c) the dominant Bacillus in a culture
(d) a certain pesticide

Correct Answer:

a particular pollutant

Explanation:

dB is a standard abbreviation for the quantitative expression of noise, Unwanted sound is called noise. Generally sound above 80 dB is noise.

AIPMT2010
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