Science Topics term usage 2008-01-20

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

(Table shows only the 40 most frequently chosen terms.)

37	earthquakes
36	geographic information systems (GIS)
24	volcanoes
19	oceans
17	transect sampling
12	earth structure
12	aerial photography
12	earthquake occurrences
11	rocks and deposits
10	acid deposition
10	tectonic processes
9	animals
9	climate change
9	mineral resources
9	tsunamis
9	erosion
8	topography
8	mollusks
8	global warming
7	human impacts
7	endangered species
7	desert ecosystems
7	planetary sciences
7	real-time monitoring and reporting
7	sediment transport
7	abandoned mines and quarries
7	aquatic ecosystems
6	contamination and pollution
6	water chemistry
6	impact cratering
6	land use and land cover
6	ground water
6	igneous rocks
6	sedimentation
6	energy resources
6	oil resources
6	water quality
6	ocean currents
6	geologic history
6	landslides

Science Topics term usage Sunday, 2008-01-20