ATMOSPHERE
National Weather Service
National Climate Data Center
Birth of a Hurricane, from MSNBC
NC Ozone Forecast Center
HYDROSPHERE
USGS: Water Resources of the United States
ICE AGES, from the Illinois State Museum
LITHOSPHERE
US Geologic Survey
USGS: Geology
USGS: This Dynamic Earth, The Story of Plate Tectonics
USGS: National Earthquake Information Center. This includes global earthquake maps and data.
The Twelve Soil Orders
BIOSPHERE
Major Biomes of the World
Introduction to Biomes
Both of the links above are from the Virtual Geography Project. "This module is part of the Virtual Geography
Department Project and has been prepared for the Physical Geography Working Group of the Project. These materials may be used
for study, research, and education, but please credit the author and source: Susan L. Woodward, The Virtual Geography Department
Project and the Department of Geography, Radford University. "
USGS: National Biological Information Infrastructure
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