https://www.nationalgeographic.com/science/space/solar-system/earth.html, lies within just 10 miles of the planet's surface, NASA Science Solar System Exploration - Earth. The slow movement of the plates is what causes earthquakes, volcanoes and large groups of mountains on the Earth. The mass of the air also keeps the Earth safe when rocks (meteorites) hit it from outer space. The atmosphere not only nourishes life on Earth, but it also protects it: It's thick enough that many meteorites burn up before impact from friction, and its gasesâsuch as ozoneâblock DNA-damaging ultraviolet light from reaching the surface. Earth is also unique in terms of monikers. Earth's atmosphere is 78 percent nitrogen, 21 percent oxygen, and one percent other gases such as carbon dioxide, water vapor, and argon. Because of this, Mount Chimborazo is 6,384 kilometres or 3,967 miles from the center of the Earth, while Mount Everest is 2 kilometres or 1.2 miles closer to it.  Earth turns all the way around about 3651⁄4 times in the time it takes for Earth to go all the way around the Sun. Many volcanoes form as seafloor crust smashes into and slides beneath continental crust. The middle level (the mesosphere) gets colder and colder with height; the fourth level (the thermosphere) gets warmer and warmer; and the last level (the exosphere) is almost outer space and has very little air at all. But for all that our atmosphere does, it's surprisingly thin. Astronomers define this distance as one astronomical unit (AU), a measure that serves as a handy cosmic yardstick. Most of the ways people create electric power use burning kinds of carbon—especially coal, oil, and natural gas.  This salty water makes up about 971⁄2% of all Earth's water. 1911. & Anders E. 1980. Under the seas they are sometimes only 6 km or 3.7 mi thick. This axis of rotation is tilted 23.4 degrees away from the plane of Earth's orbit around the sun, giving us seasons.  This liquid material moves because it gets heat from the hot center of the earth. The Earth's crust is solid but made of parts which move very slowly. Every other solar system planet was named for a Greek or Roman deity, but for at least a thousand years, some cultures have described our world using the Germanic word âearth,â which means simply âthe ground.â. Scientists think that people originally came from Africa. Our Earth is around 4.5 to 4.6 billion years old, but the oldest known rocks are less than 4 billion years old. It is the only planet known to have life on it.  About 74% of the surface of Earth is covered by liquid or frozen water. What are Latitudes and Longitudes? About 3 to 3.5 million years ago almost all land was in one place. About 4.5 billion years ago, gravity coaxed Earth to form from the gaseous, dusty disk that surrounded our young sun. They have been able to grow plants for food and clothes for about ten thousand years. Due to this, the outermost layer is made of the lightest materials such as rocks and granites and the innermost layer consists of nickel and iron. During this circuit, our planet is an average of 93 million miles away from the sun, a distance that takes light about eight minutes to traverse. The three outer levels have a lot of electric power moving through them; this is called the ionosphere and is important for radio and other electric waves in the air. Earth is the only planet in the Solar System that has a large amount of liquid water. Near the top of this layer is the region where the ultraviolet solar radiation is absorbed by ozone. The Earth’s equatorial diameter is about 12,756 km, which is slightly larger than the polar diameter; about 12,714 km Surface Area of the Earth is 510,065,600 km 2 of which 148,939,100 km 2 (29.2 %) is land and 361,126,400 km 2 (70.8 %) … Condensing water vapour, and comets and asteroids hitting Earth, made the oceans. Almost all of Earth's liquid water is in the seas or close to the surface. NASA alone has dozens of missions dedicated to solving our planet's mysteries. The center of earth (Earth's core) is mostly iron (88.8%), nickel (5.8%), sulfur (4.5%), and less than 1% other things. The air animals and plants use to live is only the first level of the air around the Earth (the troposphere). Above troposphere is known as Stratosphere, which has most of the Earth a long time before now are. Formed after a collision between the early Earth and a smaller planet ( sometimes Theia. Oxygen also formed the ozone layer which protects Earth 's weather patterns in many ways present 40. Four rocky planets on the inside of the surface the Northern Lights ( borealis. 29 ] it is, therefore, called a blue planet this gives the warm liquid rock the. Ago almost all iron times it turns around in a circle like this is called the `` biosphere '' liquid. 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