Question

Explain why holes are made in banners and hoarding hanging in the open

Answer 1

holes are made in banners and hoarding hanging in the open to exert the pressure through holes

Answer 2

Holes are made in hanging banners and hoardings to allow yeh to pass through them as a result of which there will be a less pressure of air on the dinosaurs for hoardings unless it is done this may be up rooted or destroyed due to the pressure of the air.