Question

Whose expirement showed that air is essential for green plants?​

Answer 1

Answer:

Experiment by Joseph Priestley

In 1770, after a series of experiments, Joseph Priestley came to a conclusion regarding the essentiality of air for photosynthesis and also for the growth of plants.

Explanation:

Answer 2

Answer:

Explanation:

Experiment by Joseph Priestley

In 1770, after a series of experiments, Joseph Priestley came to a conclusion regarding the essentiality of air for photosynthesis and also for the growth of plants.

Materials required: A bell jar, candle, rat, and a plant.

Experiment:

1. Priestley kept a burning candle and a rat together in the single bell jar.
2. After some time, candle extinguished and the rat died.
3. For the second time, he kept a burning candle, rat, and a green plant together in the bell jar.
4. He observed that neither the candle got extinguished, nor did the rat die.

Conclusion: Based on his observations, Priestley concluded that in the first case, the air in the bell jar got polluted by the candle and rat. However, in the second case, the plant reinstated the air that was spoiled by the candle and the rat.