How many dollar bills are in circulation? There are approximately 11.7 billion one dollar bills in circulation in the US, with 8.9 billion 20 dollar bills and 11.5 billion 100 dollar bills. There are about 39.8 billion notes in circulation all together. For coins, there are about 28 billion in general circulation. What are some unusual notes in circulation?
Planet Earth has an abundance of water that makes it unique and perfect for life to exist. Planet Earth has an abundance of water that makes it unique and perfect for life to exist.
Earth has multiple layers. The ocean basins and the continents compose the crust, the outermost layer. Earth's crust is between three and 46 miles (five and 75 km) deep. The thickest parts are under the continents and the thinnest parts are under the oceans.Crust. Earth's crust is made up of several elements: oxygen, 47 percent; silicon, 27 percent; aluminum, 8 percent; iron, 5 percent; calcium, 4 percent; magnesium, potassium and sodium, 2 percent.t the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km). It is surrounded by a liquid, outer core composed of a nickel-iron alloy. It is about 1,355 miles (2,180 km) thick.