Visit nearby place collect the water from different sources such as river, well, handpump etc.
and noted down difference in water quality
(i) Which one is more polluted water?
(ii) How industrialization is responsible for water pollution?
(iii) Name the water pollutant.
(iv) What is BOD?
(v) How does excess fluoride ion affect us?
(vi) Why is the chlorination of water done before drinking?
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1)river water
2)industrialisation increased the waste dumping from factories into river bodies.
3)water pollutants are untreated industrial wastes,toxic substances,sewage water etc.
4)BOD refers to the Biochemical Oxygen Demand...it is the amount of oxygen required to break all the organic substance in 1litre of water by bacteria.
5)..
6)chlorination helps in killing germs present in the water.
2)industrialisation increased the waste dumping from factories into river bodies.
3)water pollutants are untreated industrial wastes,toxic substances,sewage water etc.
4)BOD refers to the Biochemical Oxygen Demand...it is the amount of oxygen required to break all the organic substance in 1litre of water by bacteria.
5)..
6)chlorination helps in killing germs present in the water.
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