Name the gas present in atmosphere which is mainly responsible for causing global warming.

Name two gases present in polluted air which can cause acid rain.

Name all the major pollutants of air.

Which air pollutant combines with the haemoglobin of our blood?

Name the various air pollutants discharged by motor vehicle exhausts.

Which gas in the upper atmosphere prevents ultraviolet radiations of the sun from reaching the earth?

Name any two diseases caused by drinking polluted water containing sewage.

Name any four toxic metals whose compounds are present in industrial wastes.

Name any two types of chemicals used in agriculture which cause water pollution.

The use of excessive fertilizers in the fields lead to the deficiency of an important substance in the water of a nearby lake. Name the substance.