By Early Modern English, many nouns were capitalized, and the earth became (and often remained) the Earth, particularly when referenced along with other heavenly bodies.More recently, the name is sometimes simply given as Earth, by analogy with the names of the other planets.Some geological evidence indicates that life may have arisen as much as 4.1 billion years ago.Since then, the combination of Earth's distance from the Sun, physical properties, and geological history have allowed life to evolve and thrive."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.
Roughly True multicellular organisms formed as cells within colonies became increasingly specialized.
Aided by the absorption of harmful ultraviolet radiation by the ozone layer, life colonized Earth's surface., much of Earth might have been covered in ice.
This hypothesis has been termed "Snowball Earth", and it is of particular interest because it preceded the Cambrian explosion, when multicellular life forms significantly increased in complexity., when an asteroid impact triggered the extinction of the non-avian dinosaurs and other large reptiles, but spared some small animals such as mammals, which at the time resembled shrews.
The origin of the world's oceans was condensation augmented by water and ice delivered by asteroids, protoplanets, and comets.
Continents formed by plate tectonics, a process ultimately driven by the continuous loss of heat from Earth's interior.