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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
An example of non-biodegradable waste is
A. Vegetable peels
B. Sewage
C. Livestock waste
D. DDT
Study the picture given below and answer the following questions :
What is a ‘Pollutant’ ? Explain the term.
Which one of the following is a "dirty" practice contributing to pollution and seriously needs stoppage by educating public?
Thermal power plants give out a lot of ______ waste water.
List the three major sources of water pollution
Water in the sea is sweet.
Usage of chemical pesticides and fertilisers causes ________ pollution.
Explain about oil spills.
Industrial wastes mainly consist of chemical pollutants.
Hot water discharged into water bodies hardly affects the fish and other aquatic life.
