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The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in Plants generally involves the green pigment chlorophyll and generates oxygen as a by - product..
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The electric cell which we use in torch is known as dry cell. It is called dry cell because it does not contain any liquid chemical. The electric cell is a cylindrical device having a small metal cap on one side and a metal disc on the other side
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