Grade 12th pass7 grade science
Q.5.Explain why holes are made in hanging banners and hoardings.
Q.5.Explain why holes are made in hanging banners and hoardings.
1 Answer
Pawan Prajapati
Ans.Air exerts pressure. Due to this pressure banners and hoarding flutter and torn when wind is blowing fast. Holes are made in banners and hoardings so that wind passes through the holes and they do not become loose and fall down.
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