Urine is the liquid waste product of the body that is excreted by the urinary system.
Another readily available liquid manure is human urine.
Readily available liquid manure is a product of the body.
readily available liquid manure is a what?

[A] aqueous solution
[B] more abundant
[C] share properties
[D] competing for resources
[E] major threat to health
[F] animal transport
[G] looseness of dirt or compost
[H] product of the body