is this biodegradable? I want it for temporary use and safe to till into soil where animals graze

I also have children and small dogs I worry about and I used this paint to paint in my sons stripes in his hockey rink we built last winter. It lasted for the winter under a second layer of ice we put on. When the spring came, the ice melted and I had no residue left over and no trace of the paint what so ever. This was a good product!