Question

difination of waste
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Answer 1

Answer:

Waste is any substance which is discarded after primary use, or is worthless, defective and of no use. ... Examples include municipal solid waste (household trash/refuse), hazardous waste, wastewater (such as sewage, which contains bodily wastes (feces and urine) and surface runoff), radioactive waste, and others.

Explanation:

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Answer 2

Waste are unwanted or unusable materials. Waste is any substance which is discarded after primary use, or is worthless, defective and of no use. A by-product by contrast is a joint product of relatively minor economic value.