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प्रश्न
A jumbled word is given here. Write the correct form of the word.
CHARREGE
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उत्तर
RECHARGE
APPEARS IN
संबंधित प्रश्न
Name the gas produced when steam is passed over hot coke.
.................... is the purest form of natural water.
The ultimate source of all water on the earth is
Describe the water-cycle in nature.
Give any three important uses of water.
Give balanced chemical equations to show the reaction between Coke and steam.
State whether the given statement are true or false. If true, write the reason.
Ganga−Brahmaputra plain of India is an overpopulated region.
How is aquatic life benefited by the fact that water has maximum density at 4oC?
Explain why:
Air dissolved in water contains a higher proportion of oxygen.
Select the correct answer of the following statement:
A drying agent placed in desiccator.
Give a balanced equation for the following conversion:
Potassium oxide to a strong alkali.
True or false? Correct the wrong statement.
We get rainwater throughout the year.
________ of water is in oceans and seas.
Water changes to ice at ______.
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
From where do the following usually get water? In which form is water present in them?
Plants
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 |
What is saltwater?
Write any two activities which require less than one bucket of water.
