Class 6 Chemistry Air Around us Dust/Smoke


  • Dust is the small particles suspended freely in the air.
  • Smoke is made up of water vapour and gases which pollute the air.
    • Causes of Smoke:-
  1. Combustion of different things
  2. Forest fire
  3. Volcanic Eruptions
  4. Smoke from cigarettes
  5. Smoke from vehicles and factories.


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