MCQ
Hot air ballon rises up in the air because?
- AHot air does not play any role in rising up the ballon.
- BHot air contains water vapour which push up the ballon.
- CHot air is heavier than cold air.
- ✓Hot air is lighter than cold air.
✓
Answer
Correct option: D.
Hot air is lighter than cold air.
Hot air is lighter than cold air.
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