Discussion
A hygienic waste disposal method that involves burning of refuse and converting it into harmless waste is :
Answer: C
The method is incineration.
Incineration is the controlled burning of refuse at high temperature. It reduces waste to ash and gases, destroys germs, and greatly cuts the volume of waste, which is why it is the hygienic method of choice for hospital and other infectious waste.
Burial and landfilling dispose of refuse by covering it with earth, without burning. Composting turns organic waste into manure by the action of microbes. None of these involves burning, which is the defining feature in the question.
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