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The geological time scale (GTS), as defined by international convention, [3] depicts the large spans of time from the beginning of Earth to the present, and its divisions chronicle some definitive events of Earth history. Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula.
Earth science or geoscience includes all fields of natural science related to the planet Earth. [1] This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere , hydrosphere / cryosphere , atmosphere , and geosphere (or lithosphere ).
Much like mining, seismic waves are used to create models of the Earth's subsurface. Geological features, called traps, that commonly indicate the presence of oil, can be identified from the model and used to determine suitable sites to drill. [24] Groundwater is highly vulnerable to the pollution produced from industry and waste disposal.
Big Science: Manhattan Project | Soviet nuclear program | Military–industrial complex | Human Genome Project | Space program | High-energy physics: Related fields Philosophy of Science | History of Mathematics | History of Ideas | History of Medicine | History of Technology
The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years.. The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.
Earth Learning Idea (ELI) provides free Earth-related teaching ideas, designed to be practical science and geography resources for secondary and primary teachers and teacher-trainers and trainees across the world. It is run on a voluntary basis by three teachers from the Earth Science Education Unit (ESEU).
The timeline of first Earth observation satellites shows, in chronological order, those successful Earth observation satellites, that is, Earth satellites with a program of Earth science. Sputnik 1, while the first satellite ever launched, did not conduct Earth science.
Printable version; In other projects Wikimedia Commons; Wikidata item; Appearance. move to sidebar hide. Help ... Pages in category "History of Earth science"
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