Earth is the third planet from the Sun and is the largest of the terrestrial planets. Earth is the only planet in our solar system should not be named after a Greek or Roman god. The Earth was formed about 4.54 billion years old and is the only known planet to support life.
The rocks you are standing right now on get recycled. Volcanoes spit them out as magma as they dry, harden, and after a very long time, or to intervene again, plate tectonics, or be pushed to the core of the Earth from a fresh layer of rock above.
Earth is the only planet in the Solar System with plate tectonics. In general, the outer crust of the Earth is divided into areas known as tectonic plates. They float on top of the inner part of the earth and the magma can move relative to each other. When the two face plates, one plate will subduct (or go to another) and where they are pulled apart, they allow fresh crust to form.
The Earth’s atmosphere has a thickness within the first 50 kilometres from the surface or so, but actually reaches approximately 10,000 km in outer space. It consists of five main layers – the troposphere, stratosphere, mesosphere, thermosphere and exosphere. In general, atmospheric pressure and reduction in high density, into the atmosphere, and from them to the surface.
Though earthquakes are not interesting, they are not the only shocks that affect the land. Luna earthquake can really make a difference in tides.
The longest mountain range in the Earth is actually under water. It is a system of mid-ocean ridges. It extends 80,000 km around the Earth and almost 20 times greater than the long range surface Andes Mountains.
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