Cereal the bran, and germ, the remaining endosperm is mostly carbohydrate. In some developing countries, grain in the form of rice, wheat, millet, or maize constitutes a majority of daily sustenance. In developed countries, cereal consumption is moderate and varied but still substantial. The word "cereal" is derived from "Ceres", the Roman goddess of harvest and agriculture. Agriculture allowed for the support of an increased population, leading to larger societies and eventually the development of cities. It also created the need for greater organization of political power (and the creation of social stratification), as decisions had to be made regarding labor
Wood-burning stove comply with the Clean Air Act in "smoke control areas", an exempt appliance or fuel must be used. The United States Clean Air Act requires that wood stoves be certified by the Environmental Protection Agency (EPA). These devices meet a particular emissions standard of no more than 7.5 grams per hour for non-catalytic wood stoves and 4.1 grams per hour for catalytic wood stoves. Washington State has stricter requirements of a maximum of 4.5 grams per hour. However, the EPA has had no mandatory emission limits for pellet stoves, indoor or outdoor wood boilers, masonry stoves and certain types of