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प्रश्न
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______
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उत्तर
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink Condensation.
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संबंधित प्रश्न
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 |
State whether the given statement are true or false. If true, write the reason.
Ganga−Brahmaputra plain of India is an overpopulated region.
Of the total water available on the earth, fresh water forms ______ percent.
What will happen if the total supply of potable water is finished?
Match the following
| 1. | Flood | Lake |
| 2. | Surface water | Evaporation |
| 3. | Sunlight | Water vapour |
| 4. | Cloud | Pole |
| 5. | Frozen water | Increased rainfall |
Look at the map of Tamilnadu showing annual rainfall and answer the questions given below
- Identify the districts that get only low annual rainfall in Tamilnadu.
- Identify the districts that get a medium annual rainfall in Tamilnadu.
- State the districts that enjoy high annual rainfall in Tamilnadu.
Among the given options, which one is not correct for the use of large amounts of fertilisers and pesticides?
Water polluted by various human activities causes a number of water borne diseases. Which of the following is not a water borne disease?
Pick from the following one chemical used to disinfect water.
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 |
