Question

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

• A. Gases exert pressure.
• B. Gases don't exert pressure.
• C. Gases don't have any mass.
• D. Gases are heavier than solids.

Answer 1

The correct option is A

Gases exert pressure.

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.