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Pollution Sewage as Cause MCQ (Multiple Choice Questions) PDF Download
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Pollution Sewage as Cause MCQs: Questions and Answers PDF Download
In ecosystem, Endemics include
- malaria
- plague
- cholera
- typhoid
Bacteria grow and multiply rapidly in
- aerobic environment
- anaerobic environment
- water
- soil
An excellent habitat for bacterial growth is
- chlorofluorocarbons based products
- burning of garbage
- untreated sewage
- all of above
Untreated sewage may cause
- outbreak of epidemic
- cholera outbreaks
- typhoid outbreaks
- all of above
Hydrogen sulfide (H2S) and ammonia (NH3) are produced from
- the chimneys of factories
- use of chlorofluorocarbon in foam packaging
- decomposition of organic compounds by anaerobic bacteria
- treatment of acidic wastes with alkalis
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A Level Biology MCQ Questions
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