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प्रश्न
The jumbled word is given here. Write the correct form of each word.
WOSN
उत्तर
SNOW
APPEARS IN
संबंधित प्रश्न
Name the gas produced when a piece of calcium is added to water.
Two gases found dissolved in natural water are
What is the smallest particle of water ? Describe it’s structure.
Give any three important uses of water.
Explain why:
Rivers and lakes do not freeze easily?
Explain why:
Water is an excellent liquid to use in cooling systems.
Fill in the blank:
The type of water softened by addition of washing soda is ______.
Name one substance which is ‘deliquescent’.
Explain the following observation:
Washing-soda become coated with a white powder when left exposed to the atmosphere.
What is meant by the term ‘offshore drilling’. State the main environmental effects of offshore drilling.
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 |
Water is colourless, odourless and _______.
Mountains helps to regulate the temperature of our earth.
Nitrogen is used for the treatment of drinking water.
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 |
The jumbled word is given here. Write the correct form of each word.
QUIFERA
From where do the following usually get water? In which form is water present in them?
Aquifer
In which one of the following state's water is present on Earth?
In which of the following activities will you use minimum amount of water?
