Science Topics term usage 2006-11-14

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.)

109	earthquakes
88	volcanoes
57	geographic information systems (GIS)
37	earth structure
33	tectonic processes
29	tsunamis
28	acid deposition
26	water quality
25	herpetology
24	earthquake occurrences
22	hurricanes
22	floods
21	rocks and deposits
19	oil resources
19	energy resources
19	mineral resources
18	human impacts
17	erosion
17	contamination and pollution
17	ground water
15	remote sensing
14	desert ecosystems
14	water hardness
14	landslides
14	streamflow
13	ground-water flow
13	fires
13	surface water (non-marine)
13	reef ecosystems
13	sedimentation
13	land use and land cover
12	endangered species
12	topics
12	industrial pollution
12	coelenterates
12	ocean characteristics
12	water chemistry
11	maps and atlases
11	geologic history
11	animals

Science Topics term usage Tuesday, 2006-11-14