Hydrogen ion concentration in distilled water is

More Questions from Environmental Engineering

• Sulphur dioxide present in the industrial chimney exhaust gases causes
• __________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant.
• During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.
• __________ is the process of killing organism in water.
• Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre.
• The maximum CO2 is emitted into the atmosphere by
• Pick out the wrong statement.
• Brown spots in fabrics will be caused by washing with water containing large amount of .
• Removal of __________ results from the disinfection of water.
• There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km.

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