Question

multiple - choice question
the main drawback to using animal waste for energy is:
it takes a long time to break it down for energy
using animal waste for energy is illegal
we dont have very much animal waste to use

Explanation:

Animal waste can be broken down relatively quickly through processes like anaerobic digestion, and using it for energy is not illegal in most places. There is a large - quantity of animal waste available globally. However, the breakdown process for energy production can be time - consuming in some cases.

Answer:

It takes a long time to break it down for energy