explain why holes are made in hanging banners and hoardings
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Answer:so that it is easy to hang it as surface are decreases sand stays there for a long time
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Since the air exerts pressure on the banners, it flutters when the wind is blowing. Holes are made in hanging banners and hoardings to pass the air and reduce the pressure exerted by the air on it. If banners or hoardings do not have holes, pressure exerted by wind may tear them off or make them fall.
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