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.
You're going to get a LOT of responses for this. As far as I know and have read (and experienced first-hand), chalk paint is. any kind of paint that has an additive mixed into it to give it a gritty, matte finish and easy drying time. Many people use it because many times it negates the need for sanding a apiece and the finish allows for an easy time if you want to distress the wood.
A latex-based, versatile paint type, flat is normally used for walls and ceilings. Many types of finish are available: dead-flat matt, matt, a water-based eggshell and silk. Some formulations contain vinyl to make them more hardwearing. Flat is also best used on siding materials.