When Suresh blew air into a balloon it expanded. This shows thata)air ...
Explanation:
When Suresh blew air into a balloon and it expanded, it shows that air fills space.
Air Filling Space:
- When Suresh blew air into the balloon, the balloon expanded because the air filled the space inside it.
- This demonstrates that air takes up space and can occupy the volume of an object, such as a balloon.
- The air molecules move and spread out to fill the available space, causing the balloon to expand.
Properties of Air:
- Air is a mixture of gases, primarily nitrogen, oxygen, carbon dioxide, and small amounts of other gases.
- It is composed of tiny particles called molecules that are constantly moving and colliding with each other and with other objects.
- These molecules have mass and weight, which means that air itself has mass and weight.
- However, the expansion of the balloon only demonstrates that air fills space, not that it has no mass or weight.
Contradicting Options:
- Option 'A' states that air has no mass, which contradicts the fact that air molecules have mass and weight.
- Option 'C' states that air has no weight, which is also incorrect as air molecules have weight.
- Option 'D' states that air is visible, which is not true as air is transparent and cannot be seen directly.
Correct Option:
- Option 'B' states that air fills space, which is demonstrated by the expansion of the balloon when air is blown into it.
- This option accurately describes the behavior of air when it occupies the volume of an object.
Therefore, the correct answer is option 'B' - air fills space.
When Suresh blew air into a balloon it expanded. This shows thata)air ...
B
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