Science Topics term usage 2006-11-06

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.)

117	earthquakes
72	volcanoes
53	geographic information systems (GIS)
42	earth structure
29	floods
26	earthquake occurrences
25	acid deposition
23	streamflow
23	tectonic processes
22	mineral resources
22	animals
21	contamination and pollution
21	geologic history
21	botany
19	health and disease
18	climate change
18	human impacts
17	landslides
16	hazards
16	fires
16	desert ecosystems
15	magnetic field (earth)
14	endangered species
14	water supply and demand
14	maps and atlases
14	surface water (non-marine)
14	volcanic activity
13	rocks and deposits
13	ground water
13	land use and land cover
13	energy resources
12	water quality
12	global change
12	tsunamis
11	water resources
11	crust (earth)
11	hurricanes
11	geologic structure
11	seismology
11	ground-water flow

Science Topics term usage Monday, 2006-11-06