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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
Freezing mixture contains ............. and .............
How do fishes and aquatic animals survive when the pond gets covered with thick ice?
How is aquatic life benefited by the fact that water has maximum density at 4oC?
Explain why:
Water is an excellent liquid to use in cooling systems.
What is the importance of dissolved impurities in water?
Why is it said that water is life?
Answer in your own words.
Why is there a shortage of water even though it occupies about 71% of the earth’s surface?
Give the importance of dissolved minerals & salts.
Select the correct answer of the following statement:
A drying agent placed in desiccator.
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Give a balanced equation for the following conversion:
Potassium oxide to a strong alkali.
Explain any two environmental impacts of an ‘oil spill’.
State the importance of water for all general uses.
Give a reason for the following:
A crusty ‘boiler scale’ is formed in boilers, when hard water is used.
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______
Unscramble the words and fill in the blanks.
- ondencsaonti ______
- vaeionorpat ______
- ecippitatrino ______
Condensation results in the formation of dew on grass.
How is the life of organisms living in water affected when water gets polluted?
State whether the following statement is True or False. If false, give the correct statement.
51% of the earth’s surface is covered with water
Look at the figure.
Write down activities shown in this figure in which water is being used.
