Science Topics term usage 2007-11-12

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.)

90	volcanoes
77	earthquakes
52	geographic information systems (GIS)
46	systematics and taxonomy
32	earthquake occurrences
29	acid deposition
27	human impacts
27	earth structure
27	contamination and pollution
27	life sciences
25	tectonic processes
25	ground water
24	streamflow
22	health and disease
21	aquatic ecosystems
20	research areas
20	ocean characteristics
19	energy resources
19	animals
18	maps and atlases
18	volcanic activity
18	mineral resources
17	surface water (non-marine)
17	endangered species
16	land use and land cover
15	invasive species
15	hydrology
14	tsunamis
14	water resources
14	magnetic field (earth)
14	snow and ice cover
14	landslides
14	water supply and demand
13	water quality
13	natural resource management
13	global warming
13	population and community ecology
13	hazards
13	geologic structure
13	oil resources

Science Topics term usage Monday, 2007-11-12