+Waste refers to any unwanted or unusable materials, often the by-products of human activity. It represents discarded matter that can contribute to [Pollution](/wiki/pollution) or, through processes like [Recycling](/wiki/recycling), be transformed for new purposes.
+## See also
+- [Compost](/wiki/compost)
+- [Landfill](/wiki/landfill)
+- [Garbage](/wiki/garbage)
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