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प्रश्न
State whether the following statement is true or false. If false, write the correct statement.
Chemical pollutants include a metallic salt solution of mercury and lead.
विकल्प
True
False
उत्तर
True
संबंधित प्रश्न
Study the picture given below and answer the following questions :
Mention the impact of this pollution on human health.
Explain the following :
(i) Eutrophication ;
(ii) Biomagnification
Differentiate between chemical pollution and thermal pollution.
Name two heavy metals from industries that pollute water.
With reference to the sources of water pollutants answer the following question:
In what way does the industrial waste pollute water?
With reference to the sources of water pollutants answer the following question:
How do the radioactive wastes get into the water bodies?
Usage of chemical pesticides and fertilisers causes ________ pollution.
How can we reduce water pollution?
Which of the following is not a way to conserve 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?
