Science Topics term usage 2006-09-29

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.)

68	earthquakes
55	geographic information systems (GIS)
55	volcanoes
40	agriculture
26	tectonic processes
26	acid deposition
25	earth structure
20	energy resources
19	rocks and deposits
17	maps and atlases
17	earthquake occurrences
16	endangered species
16	water quality
16	animals
15	contamination and pollution
15	streamflow
14	tsunamis
14	ocean characteristics
13	geologic history
13	aerial photography
13	magnetic field (earth)
13	floods
12	ground-water flow
12	precipitation (atmospheric)
12	water supply and demand
11	ground water
11	droughts
11	geologic structure
11	invasive species
10	surface water (non-marine)
10	meteorites
10	water resources
10	impact cratering
10	climate change
10	mineral resources
9	mining hazards
9	wildlife
9	storms
9	planetary bodies
9	oil resources

Science Topics term usage Friday, 2006-09-29