‘Pneumoconiosis’ is a disease caused by the inhalation of __________ dust.
‘Pneumoconiosis’ is a disease caused by the inhalation of __________ dust.
The commonest form of iron & manganese found in ground water as pollutant is in
The commonest form of iron & manganese found in ground water as pollutant is in the form of their
Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure
Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is…
Water filtration rate in a rapid sand filter ranges from __________ kilolitres/m
Water filtration rate in a rapid sand filter ranges from __________ kilolitres/m 2 /hr.
Scale formation in boiler is controlled by
Scale formation in boiler is controlled by
Oil and grease present in an emulsified state in waste water discharged from ind
Oil and grease present in an emulsified state in waste water discharged from industries can be removed by
Disinfection of water is done to remove
Disinfection of water is done to remove
Which of the following is a manmade source of air pollution?
Which of the following is a manmade source of air pollution?
Which of the following pollutants is absent in the emissions from a fertiliser p
Which of the following pollutants is absent in the emissions from a fertiliser plant?
Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene
Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in ‘gas…
Which is a secondary air pollutant?
Which is a secondary air pollutant?
80% less than 200 mesh size particles are called
80% less than 200 mesh size particles are called