Waste

:For other uses of the word, see Waste (disambiguation).

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Waste is unwanted or undesired material left over after the completion of a process.

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Waste can exist in any phase of matter (solid, liquid, or gas). When released in the latter two states, gas especially, the wastes are referred to as emissions. It is usually strongly linked with pollution.

Related Topics:
Phase of matter - Solid - Liquid - Gas - Emission - Pollution

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