A leaf usually has a large surface area, so that it can absorb a lot of light. Its top surface is protected from water loss, disease and weather damage by a waxy layer. The upper part of the leaf is ...
Ms Armit: The leaf is a major organ in plants in which photosynthesis occurs. Without photosynthesis, there'd be very little life on Earth, because when plants photosynthesise, they take in carbon ...
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