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- Dictionaryearth science/ˌəːθ ˈsʌɪəns/
noun
- 1. the branch of science dealing with the physical constitution of the earth and its atmosphere: "undergraduates in earth science"
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noun
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Earth science or geoscience includes all fields of natural science related to the planet Earth. 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 science can be considered to be a branch of planetary science b... Wikipedia