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प्रश्न
What is water pollution?
Explain the meaning of water pollution.
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उत्तर
Water pollution is the introduction into fresh or ocean waters of chemical, physical, or biological material that degrades the quality of the water and affects the organisms living in it.
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संबंधित प्रश्न
List the three major sources of water pollution
With reference to the sources of water pollutants answer the following question:
Why is it harmful to dispose of household detergents in water bodies?
Water pollution can spread ________ diseases in man.
Dissolved oxygen in water is responsible for aquatic life. What processes are responsible for the reduction in dissolved oxygen in water?
Mention the standards prescribed by BIS for quality of drinking water.
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What are the causes of water pollution? Discuss how you can contribute to reducing water pollution.
Phosphate containing fertilisers cause water pollution. Addition of such compounds in water bodies causes:
(i) enhanced growth of algae.
(ii) decrease in amount of dissolved oxygen in water.
(iii) deposition of calcium phosphate.
(iv) increase in fish population.
Give two examples of water pollutants.
Hot water discharged into water bodies hardly affects the fish and other aquatic life.
