Science Topics term usage 2007-10-05

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.)

101	biological and physical processes
81	earthquakes
81	climate change
74	animals
50	birds
50	geographic information systems (GIS)
48	volcanoes
35	earthquake occurrences
34	biodiversity
30	atmospheric sciences
29	earth structure
29	aquatic ecosystems
28	contamination and pollution
27	biogeography
27	aerial photography
26	atmospheric and climatic processes
25	biological population management
25	acid deposition
24	bibliographies
23	energy resources
21	human impacts
20	health and disease
20	tectonic processes
20	water quality
19	global warming
18	population and community ecology
18	global change
17	floods
17	erosion
17	rocks and deposits
15	desert ecosystems
15	water chemistry
15	atmospheric deposition (chemical & particulate)
15	terrestrial ecosystems
15	droughts
15	geochemistry
15	volcanic activity
14	ecological processes
14	organisms
14	tsunamis

Science Topics term usage Friday, 2007-10-05