Question

$dB$ is a standard abbreviation used for the quantitative expression of

• A. A certain pesticide
• B. The dominant $Bacillus$ in a culture
• C. A particular pollutant
• D. The density of bacteria in a medium

Answer 1

The correct option is C A particular pollutant

Decibel
$dB$ stands for decibel, which is the relative measure of sound level used to denote the noise pollution produced by the loud sounds. Hence, it is a measure of noise pollution.

Final Answer
(a) A particular pollutant