What is the primary difference between refuse and sewage?
A.
Refuse is generated by animals; sewage is generated by plants
B.
Refuse is biodegradable; sewage is non-biodegradable
C.
Refuse is liquid waste; sewage is solid waste
D.
Refuse is solid waste; sewage is liquid waste
Correct Answer: Option D
Explanation
Refuse refers to solid waste materials such as garbage, paper, plastic, and other discarded items.
Sewage, on the other hand, is primarily liquid waste consisting of wastewater from households, industries, and other
sources.
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