Environmental Engineering Questions

• Average human body contains about __________ percent water by weight.
• Growth of __________ is promoted by the presence of manganese in water.
• Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.
• Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes
• If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur.
• Pick out the wrong statement.
• Radioactive solid nuclear wastes are disposed off by