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प्रश्न
_________ is used for desalination of brackish water.
पर्याय
Reverse osmosis
Ion – exchange
Adsorption
Electrodialysis
उत्तर
Reverse osmosis
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संबंधित प्रश्न
Study the picture given below and answer the following questions :
Name one pollutant that causes the above the pollution.
Study the picture given below and answer the following questions :
Mention the impact of this pollution on human health.
Sewage is a liquid waste from ______.
List the three major constituents of sewage.
Name the following
An agricultural pollutant in water
Answer the following question in one or two paragraphs
What are the major causes of water pollution?
Water is not necessary for our basic needs.
Mention the standards prescribed by BIS for quality of drinking water.
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?
Industrial wastes mainly consist of chemical pollutants.
