Gypsum refers to a naturally occurring crystalline form of calcium sulfate in which each molecule of calcium sulfate is combined with two molecules of water.
Grape is a kind of fruit which are grown and used for juices, raisins, and table fruit, but of the world's grape production mostly goes into making wine.
GlassPackaging Institute (GPI) is an organization composed of glass container producers. GPI establishes policies, such as standardization and develops industry advertising programs.
Gillnet is a type of net whose mesh size allows the heads of fish to pass through the openings but the gills get caught, and they are placed vertically in the water.