Definition: The term "whitens" is a term used in the context of environmental science and ecology. It refers to the process by which plants, particularly those native to certain regions or habitats, grow in response to changes in light levels or temperature. In other words, it describes how plants adjust their growth patterns based on the availability of sunlight or warmth. The term "whitening" is often used in the context of photosynthesis, as it refers to a process by which plants convert light energy
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