1. Tardigrade
  2. Question
  3. Biology
  4. Joseph Priestley observed that when mouse alone was placed in a closed bell jar with burning candle, it was suffocated and burning candle extinguished, but when mouse was placed with a mint plant in the same bell jar, that mouse stayed alive and candle continued to burn. What he concluded from this experiment?

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Q. Joseph Priestley observed that when mouse alone was placed in a closed bell jar with burning candle, it was suffocated and burning candle extinguished, but when mouse was placed with a mint plant in the same bell jar, that mouse stayed alive and candle continued to burn. What he concluded from this experiment?

Photosynthesis in Higher Plants

Solution:

Both options (a) and (b) are correct.
Priestley hypothesised that plants restore to the air whatever breathing animal and burning candle removes.