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Question
The air just above the flame of burning candle will ____________.
The air just above the flame of burning candle will ____________.
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Solution
The correct option is A Rise up
The burning candle releases hot air, and we know hot air rises up.As the molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
The burning candle releases hot air, and we know hot air rises up.
As the molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
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