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प्रश्न
What is done to make drinking water clean and safe?
उत्तर
Methods of settling and filtering will make the water clean. For making it safe, it is boiled for some time.
संबंधित प्रश्न
What works are undertaken to make water available even after the rainy season?
Which, of the following procedures will give you water free from all impurities?
Water which looks clean still has disease carrying ______ and ______ impurities.
(insects, microorganisms, particles, dissolved, harmful)
Find out the wrong statement and write it in its correct form.
Chlorination is a commonly used chemical method for killing germs in water.
Find out the wrong statement and write it in its correct form.
Water which is suitable for drinking is called soft water.
Which of the following is a part of the inorganic impurities of the sewage?
The process of adding chlorine in adequate amounts to water is called ______.
______ from the air and sunlight destroy the germs present in water.
Washing soda is used to remove permanent hardness of water.
Name the chemical which converts chlorides and sulphates into insoluble carbonates.
