A firki does not rotate in a closed area .give reason
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because of lack of Air movement the arrow of weathercock point towards a particular direction as it show the direction in which the air is moving at that place at a particular moment An empty glass in fact is not empty it is filled with air
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Due to the lack of air movement, A firki does not rotate in a closed area. An empty glass in fact is not empty so that they are filled with the water.
The arrow of weather points towards a particular direction as it shows that this could mainly be suitable for the direction in which the air is moving at that place at particular moment.
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