Earth science - Wikipedia
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).
Earth sciences | Definition, Topics, & Facts | Britannica
The Earth sciences are the fields of study concerned with the solid Earth, its waters, and the air that envelops it. Included are the geologic, hydrologic, and atmospheric sciences. Their broad aim is to understand Earth’s present features and past …
What is Earth Science? - Geology.com
Earth Science is the study of the Earth and its neighbors in space. It is an exciting science with many interesting and practical applications. Some Earth scientists use their knowledge of the Earth to locate and develop energy and mineral resources.
About Earth Sciences - NSF - National Science Foundation
Earth science is the study of the Earth's structure, properties, processes, and four and a half billion years of biotic evolution. Understanding these phenomena is essential to maintenance of life on the planet.
Earth system science - Wikipedia
Earth system science (ESS) is the application of systems science to the Earth. [1][2][3][4] In particular, it considers interactions and 'feedbacks', through material and energy fluxes, between the Earth's sub-systems' cycles, processes and "spheres"— atmosphere, hydrosphere, cryosphere, [5] geosphere, pedosphere, lithosphere, biosphere, [6] and...
Definition, Resources, Cycles, Examples, & Facts - Britannica
2024年11月14日 · The biosphere is the thin life-supporting stratum of Earth’s surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. It is composed of living organisms and nonliving factors from which the organisms derive energy and nutrients.
Facts About Earth - NASA Science
We're On It - Earth is a rocky planet with a solid and dynamic surface of mountains, canyons, plains and more. Most of our planet is covered in water. Breathe Easy - Earth's atmosphere is 78 percent nitrogen, 21 percent oxygen and 1 percent other ingredients—the perfect balance to breathe and live.
The origin of life on Earth, explained - University of Chicago News
2022年9月19日 · What are the major scientific theories for how life emerged? What is chirality and why is it biologically important? What research are UChicago scientists currently conducting on the origins of life? When did life on Earth begin? Earth is about 4.5 billion years old.
Evolution and the history of life on Earth - Encyclopedia Britannica
2024年10月25日 · All organisms on Earth today are equally evolved since all share the same ancient original ancestors who faced myriad threats to their survival. All have persisted since roughly 3.7 billion to 3.5 billion years ago during the Archean Eon (4 billion to 2.5 billion years ago), products of the great evolutionary process with its identical ...
EarthViewer - BioInteractive
2012年3月22日 · This interactive module allows students to explore the science of Earth's deep history, from its formation 4.5 billion years ago to modern times. EarthViewer dynamically shows how continents grow and shift as students scroll through billions of years. Additional layers let students explore changes in atmospheric composition, temperature ...