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Subjects
Science CBSE
Class 7
Winds, storms and cyclones
Wind and pressure
14.
Presence of air
Exercise condition:
2
m.
Choose the correct option
:
1
. Which of the following shows the presence of air?
child in a slide
sailing yachts
reading a book
2
. An example of convection is
reading a book
hot air balloons
sailing yachts
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