Lakhmir Singh For Class 8 Science Chapter 18 Pollution of Air and Water - Download Free PDF with Solution






FAQs on Lakhmir Singh Solutions for Class 8 Science Chapter 18 Pollution of Air and Water - PDF
1. What is global warming?
The gradual increase in the average temperature of the earth due to the accumulation of greenhouse gases is called global warming.
2. What are CFCs?
CFCs are chemical compounds. CFC is the short form for chlorofluorocarbons, a family of gases that harm the ozone layers.
3. What are the causes of water pollution?
The major causes of water pollution are industries, urbanisation, unsafe religious practices, social practices, and agriculture.
4. What is potable water?
The water that is suitable for drinking is called potable water. Municipal corporations supply it to the cities.
5. How can we make water drinkable?
By boiling water, filtering, and chlorinating, we can make water drinkable. These processes remove pollutants and germs from the water.