Science Topics term usage 2006-03-15

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.)

220	earthquakes
177	volcanoes
78	geographic information systems (GIS)
47	earthquake occurrences
47	tectonic processes
44	rocks and deposits
40	mineral resources
34	earth structure
33	energy resources
32	erosion
29	maps and atlases
29	streamflow
27	floods
27	geography
26	landslides
25	geologic structure
25	climate change
25	ground water
22	ocean characteristics
22	geologic history
20	geochemistry
19	earthquake probabilities
17	volcanic activity
17	ground-water flow
17	nonvascular plants
17	animals
17	organisms
17	aerial photography
16	water resources
16	plants (organisms)
16	oil resources
16	health and disease
16	surface water (non-marine)
15	water quality
15	invasive species
15	tsunamis
14	storms
14	fires
14	planetary bodies
14	hazards

Science Topics term usage Wednesday, 2006-03-15