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Water Pollution
What oxidized in second stage of aerobic decomposition?
Nitrogenous matter
Carbonaceous matter
Organic matter
Inorganic Dusts
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Water Pollution
What chemicals are used in loading, transit and accidental leakage from industrial storage ?
Natural Pollution
Mining Pollution
Accidental Spillage
Municipal pollution
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Water Pollution
Primary treatment reduces bacterial load, ranges from
30-80%
20-75%
10-60%
90-100%
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Water Pollution
Waste water contains algae, fungi, bacteria and
Crocodiles
Snakes
Rotifers
Tigers
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Water Pollution
What does high velocity in river cause ?
Reaeration
Currents
Hydrography
Turbidity
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Water Pollution
What are kinds of water pollution ?
Point-source
Trans-boundary
Human trash
Both a and b
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Water Pollution
What are algae helpful for ?
Turbidity
Hydrography
Self Purification
Decomposition
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Water Pollution
Organic solids consists of carbohydrates, fats and
waste
Oil
Gases
Liquids
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Water Pollution
Industrial, municipal sewage, treatment plants are examples of
Diffused sources
Point Sources
Stationary Sources
Line Sources
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Water Pollution
Primary treatment is carried out for removal of large
Particles
Sedimentation
Floating materials
Suspended solids
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