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Earth science
Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.
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Earth science > Geology 
choppy sea
Earth science; Geology
Short, rough waves tumbling with a short and quick motion. Short-crested waves that may spring up quickly in a moderate breeze, and break easily at the crest.
surveyor's compass
Earth science; Geology
A compass for determining the magnetic azimuth of a line of sight by means of a sighting device, a graduated horizontal circle, and a pivoted magnetic needle.
core formation
Earth science; Geology
The heat driven process whereby materials of higher density sink through less dense material and form the center of a planet. Also, planetary differentiation.
crystal structure
Earth science; Geology
The regular and repeated three-dimensional arrangement of atoms or ions in a crystal.
actualism
Earth science; Geology
The interpretation of ancient rocks by applying the results of analyses of modern-day geologic processes in accordance with the principle of uniformitarianism.
alloy
Earth science; Geology
A metal that is manufactured by combining two or more molten metals. An alloy is always harder than its component metals. Bronze is an alloy of copper and tin.
central business district (CBD)
Earth science; Geology
The central part of a town or city, where offices and shops are located. This area has the highest rents and land values and the highest competition for space.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)