A) Reduced air pressure can lift objects.
B) High wind speed reduces air pressure.
C) Air expands on heating.
D) Atmospheric pressure increases with a decrease in temperature.
Correct Answer: B
Solution :
As air is blown between two balloons, the speed of air increases. This reduces the air pressure between the balloons. The pressure on the other sides of the balloons being higher, pushes the balloons towards each other.
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