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Hydrogen fuel cells convert hydrogen and oxygen into electricity, heat, and water. Because this conversion process doesn't ...
which are found in leaf cells and other green parts of the plant. Chloroplasts contain a substance called chlorophyll, which gives the plant its green colour. Chlorophyll absorbs sunlight and uses ...
which are found in leaf cells and other green parts of the plant. Chloroplasts contain a substance called chlorophyll, which gives the plant its green colour. Chlorophyll absorbs sunlight and uses ...