Science Topics term usage 2006-12-05

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.)

137	volcanoes
129	earthquakes
95	geographic information systems (GIS)
35	contamination and pollution
34	fire damage
31	tectonic processes
31	earthquake occurrences
29	erosion
28	tsunamis
27	acid deposition
25	climate change
23	oil resources
23	mineral resources
23	earth structure
21	human impacts
20	sea-floor characteristics
19	volcanic activity
19	landslides
19	geologic structure
18	floods
18	global warming
16	hurricanes
16	hazards
16	rocks and deposits
16	ecological competition
15	ground water
15	animals
15	geologic history
15	streamflow
14	surface water (non-marine)
14	energy resources
14	water quality
13	outer core (earth)
13	precipitation (atmospheric)
13	invasive species
13	water supply and demand
13	river systems
13	earthquake probabilities
12	global change
12	freshwater ecosystems

Science Topics term usage Tuesday, 2006-12-05