Science Topics term usage 2006-12-10

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.)

65	geographic information systems (GIS)
51	earthquakes
33	volcanoes
22	animals
18	mass spectroscopy
18	tectonic processes
17	earth structure
14	bedrock geologic units
14	ground water
13	human impacts
12	contamination and pollution
12	wetland ecosystems
11	earthquake occurrences
10	field sampling
10	geography
10	acid deposition
10	magnetic field (earth)
9	oil resources
9	tsunamis
9	marine geology
8	erosion
8	water quality
8	climate change
8	desert ecosystems
8	ecosystems
8	rocks and deposits
8	vertebrates
7	global warming
7	endangered species
7	floods
7	mineral resources
7	sea-floor characteristics
7	ground-water flow
7	birds
6	water use
6	glaciation
6	maps and atlases
6	geologic structure
6	aquatic ecosystems
6	geologic history

Science Topics term usage Sunday, 2006-12-10