Earth's lithosphere is divided into several rigid tectonic plates that migrate across the surface over periods of many millions of years.
About 71% of Earth's surface is covered with water, mostly by oceans.
The most common rock constituents of the crust are nearly all oxides: chlorine, sulfur, and fluorine are the important exceptions to this and their total amount in any rock is usually much less than 1%.
Over 99% of the crust is composed of 11 oxides, principally silica, alumina, iron oxides, lime, magnesia, potash, and soda.
During this time, Earth rotates about its axis about 366.26 times.
Earth is the densest planet in the Solar System and the largest of the four terrestrial planets.
"Earth's atmosphere") but writes it in lowercase when preceded by the (e.g. It almost always appears in lowercase in colloquial expressions such as "what on earth are you doing? The formation and evolution of Solar System bodies occurred along with the Sun.
In theory, a solar nebula partitions a volume out of a molecular cloud by gravitational collapse, which begins to spin and flatten into a circumstellar disk, and then the planets grow out of that disk along with the Sun.This facilitated tool use and encouraged communication that provided the nutrition and stimulation needed for a larger brain, which allowed the evolution of humans.The development of agriculture, and then civilization, led to humans having an influence on Earth and the nature and quantity of other life forms that continues today. As a red giant, the Sun will lose roughly 30% of its mass, so, without tidal effects, Earth will move to an orbit 1.7 AU (250 million km; 160 million mi) from the Sun when the star reaches its maximum radius.It has cognates in every Germanic language, and their proto-Germanic root has been reconstructed as *erþō.In its earliest appearances, eorðe was already being used to translate the many senses of Latin terra and Greek γῆ (gē): the ground, Originally, earth was written in lowercase, and from early Middle English, its definite sense as "the globe" was expressed as the earth.Earth's gravity interacts with other objects in space, especially the Sun and the Moon, Earth's only natural satellite.