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Environmental Engineering in CE

Environmental Engineering in CE
Most of the atmospheric air pollutants are present in large quantity in

Thermosphere
Trophosphere
Stratosphere
Mesosphere

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Environmental Engineering in CE
Iron & manganese present in the polluted water is removed by

Simple filtration
Chemical coagulation
Chlorination only
Oxidation followed by settling & filtration

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Environmental Engineering in CE
Which of the following is not a weightless pollutant?

Radioactive rays
Thermal pollution
SPM
Noise pollution

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Environmental Engineering in CE
Exposure to chemicals having carcinogenic properties cause

Cancer
Dermatitis (skin disorder)
Asphyxiation (suffocation)
Asthma

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Environmental Engineering in CE
Average human body contains about __________ percent water by weight.

40
70
20
85

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Environmental Engineering in CE
Noise pollution level in a chemical plant is expressed in

Decibel
None of these
Hertz
Roentgen

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