Question

A balloon is filled with a gas called helium. As it rises higher and higher into the atmosphere, will it expand or shrink in size?

• A. The balloon will expand
• B. The balloon will shrink in size
• C. There would be no change in shape or size of the balloon
• D. Initially the balloon shrinks and then it expands

Answer 1

The correct option is A The balloon will expand

The balloon will expand