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प्रश्न
_________ is used for desalination of brackish water.
विकल्प
Reverse osmosis
Ion – exchange
Adsorption
Electrodialysis
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उत्तर
Reverse osmosis
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संबंधित प्रश्न
Give an account of various sources and harmful effects of water pollution.
Classify the most significant sources of water pollutants.
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Read the paragraph and answer the questions following it.
| Water is essential for life. Without water there would be no life. We usually take water as granted for its purity, but we must ensure the quality of water. Pollution of water originates from human activities. Through different paths, pollution reaches to groundwater. Easily identified source or place of pollution is called as point source, e.g. municipal and industrial discharge pipes, where pollutants enter the water source. Non-point sources of pollution are those where a source of pollution cannot be easily identified, e.g. agricultural run-off, acid rain, etc. |
- How do you classify the various sources of water pollution?
- What are the point sources of water pollution?
- Name any two non-point sources of water pollution?
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