Science Topics term usage 2006-11-22

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.)

91	earthquakes
58	volcanoes
50	geographic information systems (GIS)
48	planetary sciences
32	contamination and pollution
32	tectonic processes
23	hurricanes
20	floods
20	rocks and deposits
19	earthquake occurrences
19	water resources
18	earth structure
18	energy resources
18	acid deposition
18	human impacts
17	volcanic activity
17	climate change
16	ecology
16	tsunamis
15	ocean characteristics
15	desert ecosystems
14	ground-water flow
14	geologic history
14	water properties
14	water chemistry
14	mineral resources
14	animals
13	biogeography
13	oil resources
13	magnetic field (earth)
13	maps and atlases
13	streamflow
13	water quality
12	topics
12	endangered species
12	ocean temperature
11	geologic structure
11	meteorites
11	impact cratering
11	erosion

Science Topics term usage Wednesday, 2006-11-22