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How did Pries tly light the candle from ...

How did Pries tly light the candle from outside ?

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When th e candle stopped burning in the bell jar, he placed a mint plant inside the jar. He found that the mouse stayed alive and the candle continued to burning when introduced a lighted candle.
By th is experiment it is proved that plants can create oxygen, allowing fire to burn and animals to breathe.
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Knowledge Check

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    A
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    B
    `3//4`
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