Secondary sewage treatment is mainly a
Biological process
Physical process
Mechanical process
Chemical process
Additional Questions
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Ethanol is commercially produced through a particular species of |
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A sewage treatment process in which a part of decomposer bacteria present in the wastes is recycled into the starting of the process is called |
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Which one of the following plant is commonly used as green manure? |
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An important drug is obtained from the bark of |
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Powdery mildew of wheat is caused by a species of |
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Semiconservative replication of DNA was first demonstrated in |
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Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to the two groups |
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Morphine, which is used as an analgesic is obtained from |
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The common nitrogen-fixer in paddy fields is |
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The symbiotic association of fungi with the roots of higher plants is called: |
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