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| Srl. no. | A | B | C |
| i | Separation of visible undesirable components | Water mixed with chalk powder | Magnetic Separation |
| ii | Separation of heavier and lighter components | Sand and water | Decantation |
| iii | Separation of insoluble impurities | Iron impurities | Filtration |
| iv | Separation of magnetic components from non-magnetic components | Rice and stone | Hand-picking |
| v | Separation of solids from liquids | Husk and paddy | Winnowing |

| 1. | Mountain | Monocot |
| 2. | Desert | Branches |
| 3. | Stem | Dry place |
| 4. | Photosynthesis | Himalayas |
| 5. | Fibrous root | Leaves |
| 1 | Average kinetic energy of molecule | i. | Borosilicate |
| 2 | Pyrex glass | ii. | Railway Tracks |
| 3 | Thermal expansion | iii. | Burning |
| 4 | Heat transfer SamacheerKalvi.Guide | iv. | Temperature |
| 5 | Kerosene | v. | 20^(@)C to 10^(@)C |
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
| 1. | Heat | $0^o$ C |
| 2. | Temperature | $100^o$ C |
| 3. | Thermal Equilibrium | kelvin |
| 4. | Ice cube | No heat flow |
| 5. | Boiling water | joule |
| First-generation computer | Artificial Intelligence |
| Second-generation computer | Integrated Circuit |
| Third generation computer | Vacuum tubes |
| Fourth-generation computer | Transistor |
| Fifth-generation computer | Micro processor |
| 1. | Vitamin A | a. Rickets |
| 2. | Vitamin B | b. Night blindness |
| 3. | Vitamin C | c. Sterility |
| 4. | Vitamin D | d. Beri beri |
| 5. | Vitamin E | e. Scurvy |
| 1. | Fibre yielding plant | Chloramine |
| 2. | Hardwood | Spice |
| 3. | Neem | Hemp |
| 4. | Clove | Cereals |
| 5. | Millet | Teakwood |
