Answer:
In wealth I abound; in water I stand; as a fencer I'm valued all over the land; at Venice I'm famous; by farmers I'm prized; respected by law yet huntsmen despised; consternation and ruin ensue when I break; And the beasts of the forest advantage won't take.
I am easy to waste and unstoppable. What am I?
Part carbon part water I am poison to the fishes. Many falsely claim my name I am the pause that refreshes.
I am the kind of soda you must not drink. What am I?
I help engines spin and pants stay up.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.