Science Topics term usage 2006-10-27

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.)

84	earthquakes
65	volcanoes
51	ice masses
49	geographic information systems (GIS)
37	soil chemistry
21	earthquake occurrences
19	water chemistry
18	rocks and deposits
18	tectonic processes
17	floods
16	oil resources
16	earth structure
13	radiometric dating
13	desert ecosystems
12	erosion
12	health and disease
12	cartography
11	sedimentation
11	water quality
11	streamflow
11	river systems
11	mineral resources
10	precipitation (atmospheric)
10	plants (organisms)
10	climate change
10	energy resources
10	acid deposition
10	human impacts
9	endangered species
9	sediment transport
9	ground water
9	topics
9	contamination and pollution
9	aquatic biology
9	water cycle
9	marine biology
9	geochemistry
8	life sciences
8	economic geology
8	stream discharge

Science Topics term usage Friday, 2006-10-27