Science Topics term usage 2008-02-25

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
69	geographic information systems (GIS)
44	volcanoes
41	bedforms
37	earthquake occurrences
24	earth structure
24	climate change
23	contamination and pollution
21	tsunamis
20	acid deposition
18	nonvascular plants
18	real-time monitoring and reporting
17	human impacts
16	floods
16	rocks and deposits
14	mineral resources
13	energy resources
13	endangered species
13	desert ecosystems
12	health and disease
11	ground water
11	global change
11	erosion
11	animals
10	planetary bodies
10	geologic structure
10	ground-water flow
10	global warming
10	maps and atlases
9	impact cratering
9	aerial photography
9	earth characteristics
9	stream-gage measurement
9	drainage basins
9	producers (organisms)
8	wildlife population management
8	land use change
8	precipitation (atmospheric)
8	ecosystems
8	plants (organisms)

Science Topics term usage Monday, 2008-02-25