PSN has various meanings in the Botany category. Discover the full forms, definitions, and usage contexts of PSN in Botany.
The manufacture by plants of carbohydrates and oxygen from carbon dioxide and water in the presence of chlorophyll, with sunlight as the energy source. Carbon is sequestered and oxygen and water vapor are released in the process. The process by which green plants use light to synthesize organic compounds from carbon dioxide and water.
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