Ques. dB is a standard abbreviation used for the quantitative expression of
A. the density of bacteria in a medium
B. a particular pollutant
C. the dominant Bacillus in a culture
D. a certain pesticide.
Answer:B
Ques. dB is a standard abbreviation used for the quantitative expression of
A. the density of bacteria in a medium B. a particular pollutant C. the dominant Bacillus in a culture D. a certain pesticide.