What are the different ways in which water gets contaminated?
Water gets contaminated by following ways :
(i) Disposal of sewage in rivers.
(ii) Throwing of chemicals which are harmful and poisonous in the water bodies by various industrial units.
(iii) Mixing of harmful chemicals used in agricultural process with ground water, making it unfit for consumption.
Clear, transparent water is always fit for drinking. Comment.
At an individual level, how can you help reduce air pollution?
Explain the differences between pure air and polluted air.
You are a member of the municipal body of your town.
Make a list of measures that would help your town to ensure the supply of clean water to all its residents.
