In 1971, 73 percent of members of Congress were veterans, but veterans made up fewer than 15 percent of the American population. Ten years later, 62 percent of Congress had served in the military, while just 12 percent of the population were veterans.
Perhaps it is the time old saying, Eat your crust!. The earth's crust is a little different then the crust on a piece of bread. It is not soft and chewy, but it hard and composed of different minerals. The thin, outermost layer of the earth is called the crust. It makes up only one percent of the earth's mass. The continental crust is thicker than the oceanic crust. It can range from 25 km thick at the edges to 70 km thick near the center.
geosphere, lithosphere-the solid part of the earth consisting of the crust and outer mantle. crustal plate, plate-a rigid layer of the Earth's crust that is believed to drift slowly. sial-the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum.sima-rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium. 1  Facebook.arth's crust-the outer layer of the Earth. crust. layer-a relatively thin sheetlike expanse or region lying over or under another. asthenosphere-the lower layer of the crust.