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