The lithophile elements make up about 93 percent of the mass of the entire crust of the earth and about 97 percent of the salt content of the ocean watersâproducts of rock weathering dissolved in water.hey include 55 elements of the periodic system: O, Si, Al, Ti, B, C, all the alkali and alkaline-earth metals, the halogens, and many of the rare elements.
The United States is a federal constitutional republic, in which the President of the United States (the head of state and head of government), Congress, and judiciary share powers reserved to the national government, and the federal government shares sovereignty with the state governments.he United States is a federal constitutional republic, in which the President of the United States (the head of state and head of government), Congress, and judiciary share powers reserved to the national government, and the federal government shares sovereignty with the state governments.
Learn about the U.S. Government. The first type of government in America was based primarily on state government. Prior to the signing of the Constitution, America had been made up of thirteen colonies, which had been ruled by England.he opposite of this system of government is a centralized government, such as in France and Great Britain, where the national government maintains all power. Sharing power between the national government and state governments allows us to enjoy the benefits of diversity and unity.