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प्रश्न
Excess of fluoride in drinking water causes:
विकल्प
Lung disease
Intestinal infection
Fluorosis
None of the above
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उत्तर
Fluorosis
संबंधित प्रश्न
Have you ever observed any water pollution in your area? What measures would you suggest to control it?
Study the picture given below and answer the following questions :
What is a ‘Pollutant’ ? Explain the term.
Give an account of various sources and harmful effects of water pollution.
Explain the following :
(i) Eutrophication ;
(ii) Biomagnification
Thermal power plants give out a lot of ______ waste water.
Give a reason why :
Polluted water causes disease.
How can we reduce water pollution?
Classify the most significant sources of water pollutants.
Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of ______.
What could be the harmful effects of improper management of industrial and domestic solid waste in a city?
