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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.
Related Questions: - How many plants in the list given below have composite fruits that develop
- Which one of the following processes during decomposition is correctly described
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Topics: Conservation and Environmental Issues
(111)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- How many plants in the list given below have composite fruits that develop
- Which one of the following processes during decomposition is correctly described
- What happens during fertilisation un humans after many sperms reach close to the ovum?
- HCl is secreted by
- The permissible use of the technique amniocentesis is for
Topics: Conservation and Environmental Issues (111)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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