Science Topics term usage 2006-04-29

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.)

68	earthquakes
67	volcanoes
59	geographic information systems (GIS)
24	tectonic processes
20	animals
19	geologic history
19	earthquake occurrences
17	mineral resources
17	water quality
16	water resources
16	health and disease
15	surface water (non-marine)
14	sedimentation
13	cartography
12	wildlife
12	maps and atlases
12	aerial photography
12	invasive species
12	energy resources
11	magnetic field (earth)
11	remote sensing
11	snow and ice cover
10	ground water
10	climate change
10	acid deposition
9	ecosystems
8	ocean characteristics
8	streamflow
8	coastal zones
8	geochemistry
8	mining hazards
8	tsunamis
8	freshwater ecosystems
8	landslides
8	volcanic activity
8	geologic structure
8	rocks and deposits
7	endangered species
7	precipitation (atmospheric)
7	global change

Science Topics term usage Saturday, 2006-04-29