I would have to say false. Petroleum byproducts are derived from, well petroleum. Petroleum is another name for oil, which itself is a nonrenewable resource.
It is formed by plate tectonics
I think it would be the inside bend of a river, the other areas seem a little bit too high of energy
Seafood is in high demand, and fish are being consumed faster than they can reproduce. Also, oil spills pollution, climate change or other natural causes can affect fish population