Fill in the blanks with the help of words given in bracket after each sentence.
(a) When air is contaminated by……. substances which have a ……. effect on both the……. and…….it is referred to as…….
(air pollution, harmful, living, unwanted, non-living, pollutants)
(b) Many…….are responsible for causing …….pollution. Petroleum …….are a major source of…….pollutants like…….and …….
(sulphur dioxide, refineries, industries, nitrogen dioxide, gaseous, liquid, people, air)
(c) ,While…….your teeth, leaving the…….running may waste several…….of Water.
(tap, litres, brushing, washing, drops)
(d) Water which is suitable for …….. is called……. water.
(washing, bathing, drinking, potable, soft)
(e) Water which looks clean still has disease carrying…….and …….impurities.
(insects, microorganisms, particles, dissolved, harmful)
(a) When air is contaminated by unwanted substances which have a harmful effect on both the living and non-living, it is referred to as
air pollution.
(b) Many industries are responsible for causing air pollution. Petroleum refineries are a major source of gaseous pollutants like sulphur
dioxide and nitrogen dioxide.
(c) While brushing your teeth, leaving the tap running may waste several litres of water.
(d) Water which is suitable for drinking is called potable water.
(e) Water which looks clean still has disease carrying microorganisms and dissolved impurities.
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.