Chemical Engineering - Environmental Engineering
Exercise : Environmental Engineering - Section 4
36.
Most of the bacteria in sewage are
37.
Which of the following is the most major constituents of air pollutants ?
38.
Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.
39.
Carbonaceous particles having size less than 1 μm are called
40.
__________ substances present in sewage are removed in grit chamber during sewage treatment.
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