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प्रश्न
_____ is a type of rainwater harvesting.
विकल्प
Roof top harvesting
Watercycle
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उत्तर
Roof top harvesting is a type of rainwater harvesting.
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संबंधित प्रश्न
Why is water very precious for all living being ?
State what is potable water. Give its qualities or characteristics which make it fit for human consumption.
Differentiate between the following:
Natural water and treated water
Match the terms in List I with the correct answers in List II.
| List I | List II |
| 1. Solubility in a given solvent decreases with an increase in temperature. | A: Na2SO4.10H2O |
| 2. A white efflorescent crystal | B: NaOH |
| 3. A hygroscopic dehydrating agent | C: Ca(HCO3)2 |
| 4. A deliquescent alkali | D: conc. H2SO4 |
| 5. A substance present in temporary hard water | E: CaSO4 |
What happens when a spoonful of sugar, sawdust, and soil are added to a glass of water?
Condensation results in the formation of dew on grass.
Write a few slogans of your own on the topic “Save Water”
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).

Which of the following is waste water?
Look at the figure.

Write down activities shown in this figure in which water is being used.
