The primary drawback of waterless,odorless composting toilet systems is that they ____.
A) convert human fecal material to soil-like fertilizer supplement
B) become clogged very easily
C) save large amounts of water
D) are not feasible for large-scale projects
E) involve expensive upfront installation costs

Question

Quizplus · Accepted Answer

Waterless, odorless composting toilet systems often involve expensive upfront installation costs, which can be a primary drawback for many users.

The Primary Drawback of Waterless,odorless Composting Toilet Systems Is That