The production of biogas from the fermentation of waste materials is an example of? By: Sunday|Published on: Dec 11|Categories: Chemistry WAEC| 0 comments A. combustion B. incineration C. refining D. recycling Correct Answer: Option D D. recycling Users Also Read These:The production process that combines two or more raw…Which of the following is not a product of…Which of the following materials is used to control…The cost of raw materials available for production is?The by-product of the fermentation of sugar to ethanol is?SEE ALSO When chlorine is added to slaked lime, the product obtained is?