Environmental Biotechnology MCQs

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Practice free Environmental Biotechnology multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 95 questions — no login required.

Question 19hard
Asbestos use is banned in many countries. It is known to cause
Question 20hard
. . . . . . . . test is designated to enumerate total viable population
Question 21medium
Which of the following affects the ozone concentration in troposphere?
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Question 22hard
After sedimentation, the water is next passed through sand filter beads, a process which removes . . . . . . . . bacteria.
Question 23medium
A bacterium useful in bioleaching of metals from low grade ores is
Question 24hard
The combination of primary and secondary treatment reduces the original sewage BOD by
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Question 25medium
Which of the following industries do not produce hazardous waste?
Question 26hard
Ballast water may be carried on-board by ships to maintain stability and improve manoeuvrability during transit. Introduction of which one of the following is regarded as the major threat in release of untreated ballast water?
Question 27hard
The enteroviruses are the ones most commonly found in sewage, they include