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प्रश्न
How is rain produced?
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उत्तर
Rain is produced by two natural processes, i.e., evaporation and condensation. The water from water bodies evaporates into the air and gets condensed in the form of tiny droplets. Enormous droplets of water appear in the form of clouds. When the droplets become big and heavy, they fall down in the form of rain.
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संबंधित प्रश्न
State the importance of water cycle in nature.
Name the two gases from which water is formed. What is the chemical composition of these two gases in water ?
Name the gas produced when chlorine is dissolved in water and exposed to sunlight.
Match the statements in column A with that in column B.
| Column A | Column B |
| (a) deliquescent substance | (1) sodium bicarbonate |
| (b) hygroscopic substance | (2) magnesium chloride |
| (c) efflorestance substance | (3) conc. sulphuric acid |
| (d) substance causing temporary hardness | (4) washing soda |
Give any three important uses of water.
Explain why rivers and lakes do not freeze easily.
Define
Henry's law
Why is it said that seawater is useful even though it is not potable?
Give a reason why alcohol and water form a miscible mixture while oil & water do not.
Which are the three states of water?
