List any three human activities that you think would lead to air pollution.
Man made sources of air pollution:
(i) Use of diesel and petrol in vehicles.
(ii) Burning of coal in factories, engines and thermal power stations.
(iii) Deforestation.
How is our atmosphere different from the atmosphere on Venus and Mars?
What causes winds?
How are clouds formed?
How does the atmosphere act as a blanket?
