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प्रश्न
Fill in the blank.
Lubricants are used to ..................... friction.
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उत्तर
Lubricants are used to reduce friction.
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संबंधित प्रश्न
Give two examples of situations in which applied force causes a change in the shape of an object.
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Tick the most appropriate answer.
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Answer the following in a word or two or in a sentence.
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