Without leaves, there would not be life on Earth. Leaf size can vary from the tiniest leaf of the common water fern (Azolla filiculoides) that are just one mm in length, to the largest leaves of the raffia palm (Raphia regalis) measuring 25 meters in length. No matter the size, most leaves are adapted for photosynthesis. This is a very important process where plants convert light energy into sugars and oxygen.
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