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Question

In order to carry out photosynthesis, what are the substances that a plant must take in ? Also mention their sources.​

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Solution

The substances needed by the plant to carry out photosynthesis are:​ Sunlight (Source: Sun) - This light energy is converted into chemical energy.​ Water (Source: soil) - The water molecules get split to release oxygen.​ Chlorophyll (Source: contained in the leaf) - chlorophyll absorbs the light energy and uses it in splitting water molecules into H+ ions and OH- ions.​ Carbon dioxide (Source: atmosphere) - The CO2combines with the H+ ions to form glucose. ​

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