Science Topics term usage 2006-04-03

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.)

140	earthquakes
127	volcanoes
64	geographic information systems (GIS)
44	mineral resources
42	energy resources
36	ground water
35	floods
34	animals
31	tectonic processes
29	invasive species
29	earth structure
29	climate change
27	water quality
27	earthquake occurrences
26	surface water (non-marine)
26	contamination and pollution
26	tsunamis
26	planetary bodies
25	acid deposition
24	rocks and deposits
24	maps and atlases
23	ocean characteristics
23	coastal zones
22	landslides
22	land surface characteristics
22	erosion
20	ground-water flow
20	remote sensing
18	geologic history
18	marine geology
18	aerial photography
18	global change
17	water resources
17	storms
17	streamflow
16	natural gas resources
16	gravitational field (earth)
15	oil resources
15	magnetic field (earth)
15	geologic structure

Science Topics term usage Monday, 2006-04-03