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Manufacturing Industries
Water pollution:
(i)Water pollution is caused by organic and inorganic industrial wastes and affluents discharged into rivers.
(ii)The main culprits in this regard are paper, pulp, chemical, textile and dyeing, petroleum refineries, tanneries and electroplating industries that let out dyes, detergents, acids, salts and heavy metals like lead and mercury pesticides, fertilisers, synthetic chemicals with carbon, plastics and rubber, etc. into the water bodies.
(iii)Fly ash, phospo- gypsum and iron and steel slags are the major solid wastes in India
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What are basic industries? Give an example.
Name the important raw materials used in manufacturing of cement.
How are integrated steel plants different from mini steel plants? What problems does the industry face? What recent developments have led to a rise in the production capacity?
How do industries pollute the environment?
Discuss the steps to be taken to minimise environmental degradation by industry.
Used to drive machinery (5) P ..........................
People who work in a factory (6) W ..........................
Where the product is sold (6) M ..........................
A person who sells goods (8) R ..........................
Thing produced (7) P ..........................
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