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Question


A balloon inflates when air is pumped into it. Which of the following conclusions can be derived from this?


Options:
A .   Gases exert pressure.
B .   Gases don't exert pressure.
C .   Gases don't have any mass.
D .   Gases are heavier than solids.
Answer: Option A
:
A

Gases exert pressure on the walls of the container they are stored in. This pressure changes the shape of the balloon causing it to inflate.



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