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Air around us - I
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Which one of the following item cannot be used to demonstrate the presence of air?
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A
Moving car
💡 Explanation:
A moving car does not directly demonstrate the presence of air in the way the other options do. Windmills and fans both work by harnessing air movement. A firki (toy pinwheel) spins when air blows through it, visibly showing air's presence. While a car experiences air resistance (drag), it doesn't demonstrate air's presence to an observer in the same direct, visual way.