Clear and transparent water is always fit to drink.
True
False
Which of the following affects the ozone layer?
Carbon monoxide
Carbon dioxide
Chlorofluorocarbons
Nitrogen oxides
Match the Columns
Substances that cause pollution
Excessive growth of algae and weeds in a water body
Increase in average temperature of the earth’s atmosphere
Layer surrounding the atmosphere of earth
Rain that destroys vegetation
Pollutants
Eutrophication
Global warming
Ozone
Acid rain
oxygen
germs
animals
plants