Which of these is an example of a physical change? question 9 options: paper burning wood decaying iron melting steel rusting

Paper burning is a form of a physical change known as combustion. The chemical bonds in between atoms holding them together are being changed with the heat, making it different on an atomic level.

I’d have to say no because without oxygen in the water the fish would all be dead. so if you want to fish for dead fish, pick the ponds with the lowest oxygen concentrations.