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प्रश्न
Cleaning of water is a process of removing ______.
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उत्तर
Cleaning of water is a process of removing pollutants.
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संबंधित प्रश्न
Why do organisms need water?
Why is water essential for life?
Name the two gases from which water is formed. What is the chemical composition of these two gases in water ?
Give balanced chemical equation for the reaction of water with Sodium .
Give balanced chemical equation for the reaction of water with Iron .
.................... is the purest form of natural water.
Two gases found dissolved in natural water are
Explain how the peculiar variation of density of water with temperature can cause water— pipes to burst in very cold places.
State the importance of the solubility of CO2 and O2 in water.
Why is it said that water is life?
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______
37% of our brain‛s mass consists of water.
________ of water is in oceans and seas.
______ plays a vital role in the evolution and survival of life.
Match the items of Column I with the items of Column II with reference to sewage.
| Column I | Column II | ||
| (a) | Inorganic impurities | (i) | phosphorus and nitrogen |
| (b) | Organic impurities | (ii) | nitrates and phosphates |
| (c) | Nutrients | (iii) | cholera and typhoid |
| (d) | Bacteria | (iv) | pesticides and herbicides |
A mixture (x) in water contains suspended solids, organic impurities, inorganic impurities (a), nutrients (b), disease-causing bacteria and other microbes. Give names for (x), (a) and (b)?
Fill in the blanks selecting words from the following list
snow, rain, clouds, vapour, evaporation, transpiration.
Water, as ______ goes into atmosphere by the processes of ______ and ______ and forms ______, which on condensation fall in the form of ______ and ______.
