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प्रश्न
Explain why air is used to inflate tyres.
उत्तर
Air is used to inflate tyres because air can take the shape of any substance that it is pushed into, as there are large inter-molecular spaces present in air. Thus, when air is filled in a tyre, its particles distribute themselves evenly by diffusion inside the tyre, giving it a proper balance. Liquid can be filled in a tyre but it will exert more pressure than the atmospheric pressure and there will be chances of tyre getting burst. Besides, it will unnecessarily increase the weight of the vehicle.
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