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The following hypothesis, "Plants restore to the air whatever breathing animals and burning candles remove" was given byA. Joseph PriestleyB. Jan IngenhouszC. T. W. EngelmannD. C. van Niel |
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Answer» Correct Answer - A .In 1770 he performed a series of experiments that showed the essential role of air in the growth of green plants. Priestley discovered `O_(2)`, in 1774. .He experimented with a mint plant. Priestley observed that a candle burning in a closed space a bell jar, soon gets extinguished. Similarly, a mouse would soon suffocate in a closed space. He concluded that a burning candle or an animal that breathe the air, both somehow, damage the air. But when he placed a mint plant in the same bell jar, he found that the mouse stayed alive and the candle continued to burn. Priestley hypothesis: Plants restore to the air what ever breathing animals and burning candles remove. |
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