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प्रश्न
What is done to make drinking water clean and safe?
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उत्तर
Methods of settling and filtering will make the water clean. For making it safe, it is boiled for some time.
संबंधित प्रश्न
Use your brain power!
How should roads and footpaths be built to make rainwater seep into the ground?
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?
Fill in the blanks with the help of words given in bracket after the sentence.
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.
Why are open drains a concern?
The process of adding chlorine in adequate amounts to water is called ______.
______ from the air and sunlight destroy the germs present in water.
Temporary and permanent hardness can be removed by the method of boiling.
Name the chemical which converts chlorides and sulphates into insoluble carbonates.
