The step in which organic matter is oxid...

The step in which organic matter is oxidized with the help of microorganisms in the effluent treatment platns (ETPs) is

primary treatment

secondary treatment

tertiary treatment

none of these

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AAKASH SERIES-ENVIRONMENTAL ISSUES-Exercise-I (Water pollution)

Release of phosphates and nitrates in water bodies (i.e., rivers and l...
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The term "Bio-magnification" refers to the
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The step in which organic matter is oxidized with the help of microorg...
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In piped water supply system water is often treated with chlorine to
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Which among the following is likely to have the highest levels DDT de...
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A test procedure based on the chemical decomposition of organic and in...
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High concentrations of accumulated DDT in birds
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Insecticides usually act upon
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Which of the following is called eutrophication ?
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Thermal pollution of water bodies is due to discharge of
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When temperature increases dissolved oxygen of water
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Realizing the importance of maintaining the cleanliness of the water b...
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Ganga action plan for controlling pollutionin Ganges started in
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World.s most problematic aquatic weed is
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Wich of the following causes biomagnifications ?
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The expanded form of DDT is
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The green scum seen in the fresh water bodies is
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Match correctly the following and choose the correct option . {:(" ...
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Which one of the following impurities is easiest to remove form waste ...
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Which one of the following diseases in not due to contamination of wat...
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