Chemical Engineering :: Environmental Engineering
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Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes
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Pick out the wrong statement.
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Radioactive solid nuclear wastes are disposed off by
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Growth of __________ is promoted by the presence of manganese in water.
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Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.
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If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur.
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A.
The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere.
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B.
Stratosphere is rich in ozone and is located just above the troposphere.
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C.
Troposphere is a turbulent dusty zone containing much of water vapor and clouds.
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D.
The earth's atmosphere is an envelope of gases extending upto a height of about 200 kms.
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