Which of the following distinguishes why “biosolid” is another name for fertilizers made from sewage sludge?


A. Farmers mix the untreated solid wastes with their own compost piles.

B. Sewage sludge is a biodegradable way of recycling human waste.

C. Sewage facilities remove liquid and then compact solid wastes.

D. Fertilizers use solid wastes in their natural form to replenish the soil.