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प्रश्न
Match Column I with Column II
| Column I | Column II | ||
| (a) | Groundwater | (i) | The solid form of water |
| (b) | Bawri | (ii) | Wastage of water |
| (c) | Snow | (iii) | Water management |
| (d) | Drip irrigation | (iv) | Small water |
| (e) | Leaking taps | (v) | Water table |
उत्तर
| Column I | Column II | ||
| (a) | Groundwater | (v) | Water table |
| (b) | Bawri | (iv) | Small water |
| (c) | Snow | (i) | The solid form of water |
| (d) | Drip irrigation | (iii) | Water management |
| (e) | Leaking taps | (ii) | Wastage of water |
APPEARS IN
संबंधित प्रश्न
What are the main causes of water pollution ? How can it be controlled ?
Give reason of Carbonated drinks are bottled under high pressure.
Explain how the peculiar variation of density of water with temperature can cause water— pipes to burst in very cold places.
Water exists in all three states. Discuss.
Which property of water enables it to modify the climate?
What is the effect of impurities present in the water on the melting point and boiling point of water?
How do fishes and aquatic animals survive when the pond gets covered with thick ice?
Explain why:
Water is an excellent liquid to use in cooling systems.
Explain why:
Table salts become sticky on exposure to humid air during the rainy season.
Give the importance of dissolved air – in water.
Fill in the blank:
Unpolluted water has _____ amount of dissolved oxygen.
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 ______
Nitrogen is used for the treatment of drinking water.
State whether the following statement is True or False. If false, write the correct statement
Ice is solid whereas snow is the semi-solid form of water.
The jumbled word is given here. Write the correct form of each word.
CHARREGE
From where do the following usually get water? In which form is water present in them?
Plants
Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage
Why should we not throw cooking oil and fats down the drain?
