Good comments dead_sled. I see you are thinking!
False. Explain why you think this must always be true? You state this as a priori knowlege, yet I would question the basis for your assumption.Originally Posted by dead_sled
Some waste products certainly do stay in the system, but some are removed; therefore, this statement is partially false.Originally Posted by dead_sled
It depends. The loss of what? Carbon, hydrogen, and oxygen are the bulk of plant matter. These can come from "the air" for most AP systems, if so designed. In fact, some are. As for the rest, it depends because it's very specific to the details of the system.Originally Posted by dead_sled