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प्रश्न
Define:
Aeration
उत्तर
To kill harmful micro-organisms present in filtered water, air under pressure is blown into the filtered water. This process is called aeration.
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संबंधित प्रश्न
Fill in the blanks with the appropriate answers:
The process of water seepage into the ground is called ________.
Answer the following questions in short:
In which form is water present in the atmosphere?
Answer the following questions in short:
Why is rainwater considered the purest form of natural water?
Why are ice, liquid water, and steam considered to have the same chemical substance?
How mist is formed?
Give reasons
Ice floats on water
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Fill in the blank.
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Tick (√) the correct alternative from the choice given for the following statement:
Common salt is obtained from sea water by
Write down the sources of water.
