STANDARDBotany-Photosynthesis

STANDARD Botany Historical Experiments MCQ Question

Type: MCQ-conceptual-Medium

"Impure air is purified in the presence of light and green plants" was first said by

A

De Saussure

B

Priestley

C

Van Helmont

D

Ingenhousz

Correct Answer

Option B

Detailed Explanation

Joseph Priestley carried out an experiment that showed that plants produce oxygen. He put a mint plant in a closed container with a burning candle and proved that impure air is purified in the presence of light and green plants.

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