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प्रश्न
Match the following.
| Column A | Column B |
| 1. Rolling friction | a. making grooved designs |
| 2. Static friction | b. regular oiling |
| 3. Reducing friction | c. a book placed on a tabletop |
| 4. Increasing Friction | d. wheels of a car |
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उत्तर
| Column A | Column B |
| 1. Rolling friction | d. wheels of a car |
| 2. Static friction | c. a book placed on a tabletop |
| 3. Reducing friction | b. regular oiling |
| 4. Increasing Friction | a. making grooved designs |
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