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प्रश्न
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 |
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उत्तर
| Column I | Column II | ||
| (a) | Inorganic impurities | (ii) | nitrates and phosphates |
| (b) | Organic impurities | (iv) | pesticides and herbicides |
| (c) | Nutrients | (i) | phosphorus and nitrogen |
| (d) | Bacteria | (iii) | cholera and typhoid |
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संबंधित प्रश्न
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Define
Henry's law
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Give a balanced equation for the following conversion:
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Complete the statement by filling the blank with the correct word from the option.
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Match the terms in List I with the correct answers in List II.
| List I | List II |
| 1. Solubility in a given solvent decreases with an increase in temperature. | A: Na2SO4.10H2O |
| 2. A white efflorescent crystal | B: NaOH |
| 3. A hygroscopic dehydrating agent | C: Ca(HCO3)2 |
| 4. A deliquescent alkali | D: conc. H2SO4 |
| 5. A substance present in temporary hard water | E: CaSO4 |
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What do you see?
Look at the map of Tamilnadu showing annual rainfall and answer the questions given below
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“Every Drop Counts” is a slogan related to
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Rapid growth of industries is one of the causes for water shortage
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Fill in the blanks in the following statements using words given in the box.
| air, handpumps, cholera, water, large, ground |
A very ______ number of our people defecate in the open. It may cause ______ pollution and soil pollution. Both the surface water and ______ water get polluted. ______ water is the source for wells, tubewells and ______. Thus it becomes the most common route for ______ borne diseases like ______, dysentery, etc.
Fill in the blanks selecting words from the following list
snow, rain, clouds, vapour, evaporation, transpiration.
Water, as ______ goes into atmosphere by the processes of ______ and ______ and forms ______, which on condensation fall in the form of ______ and ______.
Construct a crossword puzzle of your own using the keywords.
