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Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's crust.
- History
The history of Earth concerns the development of planet...
- Internal structure
The internal structure of Earth are the layers of the Earth,...
- 英語版
The geological history of the Earth follows the major...
- History
Sie ist Ursprungsort und Heimat aller bekannten Lebewesen. Ihr Durchmesser beträgt mehr als 12.700 Kilometer und ihr Alter etwa 4,6 Milliarden Jahre. Nach ihrer vorherrschenden geochemischen Beschaffenheit wurde der Begriff der „ erdähnlichen Planeten “ geprägt. Das astronomische Symbol der Erde ist ♁ oder . [4]
The history of Earth concerns the development of planet Earth from its formation to the present day. [1] [2] Nearly all branches of natural science have contributed to understanding of the main events of Earth's past, characterized by constant geological change and biological evolution .
Vor 5 Tagen · Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface environments are the only places in the universe known to harbor life.
- Earth is the third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its near-surface environments ar...
- Earth is located in the Orion-Cygnus Arm, one of the four spiral arms of the Milky Way, which lies about two-thirds of the way from the centre of t...
- Earth’s name in English, the international language of astronomy, derives from Old English and Germanic words for ground and earth, and it is the o...
- Earth and the other planets in the solar system formed about 4.6 billion years ago. The early Earth had no ozone layer and no free oxygen, lacked o...
- Viewed from another planet, Earth would appear bright and bluish in colour. In latitudinal belts, swirling white cloud patterns of midlatitude and...
Earth is the third planet from the Sun in the Solar System. It is the only planet known to have life on it. The Earth formed about 4.6 billion years ago. [29] [30] It is one of four rocky planets on the inner side of the Solar System. The other three are Mercury, Venus, and Mars .
The internal structure of Earth are the layers of the Earth, excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly viscous asthenosphere, and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core .
The geological history of the Earth follows the major geological events in Earth's past based on the geological time scale, a system of chronological measurement based on the study of the planet's rock layers ( stratigraphy ).
