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.
Asthenosphere Asthenosphere, Layer beneath the lithosphere. The asthenosphere is the layer of our planet that lies beneath the lithosphere. It was first named by J. Barrell, a British geologist when he divided the interior of the Earth into three parts. The lithosphere is the outer layer of the Earth that contains crustal plates.