1. USGS Thesaurus
Categories > topics
earth characteristics
The measurable, definable properties and features of the earth.
Subtopics
atmospheric properties
earth material properties
earth structure
geologic history
geologic structure
gravitational field (earth)
lakebed characteristics
land surface characteristics
magnetic field (earth)
ocean characteristics
rocks and deposits
snow and ice cover
stratigraphic sections
topography
See also
earth sciences
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