Science Topics term usage 2006-11-17

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.)

105	earthquakes
91	floods
86	volcanoes
51	geographic information systems (GIS)
37	earthquake occurrences
36	seismic methods
23	contamination and pollution
21	earth structure
20	acid deposition
18	mineral resources
17	ground water
17	energy resources
17	tectonic processes
16	climate change
16	rocks and deposits
15	tsunamis
15	water quality
14	outer core (earth)
14	hurricanes
14	endangered species
14	seismology
13	animals
12	hazards
12	streamflow
12	desert ecosystems
12	health and disease
11	geologic structure
11	erosion
11	invasive species
10	fishery resources
10	magnetic field (earth)
10	precipitation (atmospheric)
10	oil resources
10	surface water (non-marine)
9	human impacts
9	snow and ice cover
9	ground-water flow
9	global warming
9	geologic history
9	mantle (earth)

Science Topics term usage Friday, 2006-11-17