hello full in the banks 100 % correct
Answers
1. The substances which contaminate water are pollutants
2. Average temperature of atmosphere is gradually increasing. This is called Global warming
3. Chloroflouracarbon(CFC) is used in aerosol sprays.
4. Water which is pure and suitable for drinking is called potable water.
II.
a. When air is contaminated by unwanted substances, which have a harmful effect in both living and non-living it is referred to as air pollution
b. Many industries are responsible for causing air pollution. Petroleum liquid 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.
i.1pollutants
2global warming
3 CFC
4potable water
ii. a. unwanted, harmful,living,non living,air pollution
b. Industry,air, liquid,gaseous,sulphur dioxide,nitrogen dioxide
c. Brushing,tap,litres.