A Green Card holder who is not a minor can file Form N-400, Application for Naturalization, to obtain US citizenship. Similarly, he must have become a permanent resident before five years and must have remained as a permanent resident in America for at least five long years.
Now, flat paint is (usually) a latex paint that dries without a reflective finish-that's it-the finish is smoother (imho) than chalk paint. Chalk paint really dries quickly and it has a rough texture to it after it dries. Many people use wax or poly-acrylic sealant on top of their furniture piece to keep the paint from peeling. So there ya go, my best explanation.
Flat vs Matte | Flat Paint vs Matte Paint. The difference between flat and matte paint is something you have to understand before deciding to paint your house. Now, think about this situation. Your family has finally agreed upon the shade of the paint that you are going to use inside the home on the walls.