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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 :
Water pollution
Which one of the following is a "dirty" practice contributing to pollution and seriously needs stoppage by educating public?
List two major harmful effects of the following:
Rivers contaminated with sewage.
How could warm water act as a pollutant?
Explain the different ways by which water gets polluted.
Dissolved oxygen in water is responsible for aquatic life. What processes are responsible for the reduction in dissolved oxygen in water?
What are the causes of water pollution? Discuss how you can contribute to reducing water pollution.
Liquid kitchen waste alone constitutes the sewage.
Household detergents are safe and non-contributors to water pollution.
