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Q.

Explain why holes are made in hanging banners and hoardings.

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Detailed Solution

Holes are drilled into the banners and hoardings to allow air to get through. If they don't have any holes in them, the air pressure will be quite high, which may lead to damage and wear on banners and hoardings. So, to prevent these damages, holes are created, which helps lowering the air pressure on the banners and hoardings.

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