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प्रश्न
Look at the figure.
Write down activities shown in this figure in which water is being used.
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उत्तर
The activities shown in the figure are:
- A lady is lifting water from the well for storage and drinking water in the earthen pot.
- A man is washing clothes.
- Another man is bathing.
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संबंधित प्रश्न
State the importance of water cycle in nature.
Give reason of Alcohol is mixed with water and is used in car radiator.
Give reason of Icebergs float on ocean water.
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 |
How is aquatic life benefited by the fact that water has maximum density at 4oC?
Explain why:
If distilled water is kept in a sealed bottle for a long time, it leaves etchings on the surface of the glass.
Explain why:
Water is an excellent liquid to use in cooling systems.
Give reason for the following:
The percentage of oxygen, in air dissolved in water, is higher than the percentage of oxygen in ordinary air.
State the meaning of the term ‘water pollution’. State how you would find out, the different sources of pollution of water bodies in the locality.
A man travelling on a train threw an empty packet of food on the platform. Do you think this is a proper waste disposal method? Elaborate.
