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Subjects
Science CBSE
Class 7
Winds, storms and cyclones
Textbook questions
6.
Answer briefly IV
Exercise condition:
3
m.
Explain why holes are made in hanging banners and hoardings.
Holes are made in the hanging banners and hoardings so that
air cannot pass
air can pass
water can pass
through it. It also
reduces
gives
increases
the impact of
temperature
air pressure
water pressure
and helps the banner to withstand the
pressure
humidity
temperature
. Thus, the hanging banners and hoardings remain intact.
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