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प्रश्न
_____ is a type of rainwater harvesting.
पर्याय
Roof top harvesting
Watercycle
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उत्तर
Roof top harvesting is a type of rainwater harvesting.
APPEARS IN
संबंधित प्रश्न
Answer the following question:
Why is acid added to water before electrolysis ?
Water exists in all three states. Discuss.
What do you understand by permanent hardness?
Give reason for the following:
The percentage of oxygen, in air dissolved in water, is higher than the percentage of oxygen in ordinary air.
Name or state the following:
A deliquescent salt of a trivalent metal.
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 |
Unscramble the words and fill in the blanks.
- ondencsaonti ______
- vaeionorpat ______
- ecippitatrino ______
A jumbled word is given here. Write the correct form of the word.
QUIFERA
Pick from the following one chemical used to disinfect water.
A man travelling on a train threw an empty packet of food on the platform. Do you think this is a proper waste disposal method? Elaborate.
