Evidence of Climate Change over the Last 10,000 Years from the Sediments of Lakes in the Upper Mississippi Basin
Middle school teachers and students can explore key Earth science concepts through numerous online learning modules created by the Bureau of Economic Geology at the University of Texas at Austin. The modules...
The transport and transformation of substances in the environment are known collectively as biogeochemical cycles. These global cycles involve the circulation of elements and nutrients that sustain both the biological...
This site features a unit of an on-line textbook. Topics covered include microbial energy sources, polymerase chain reaction (PCR), and the role of microbes in nutrient cycling. Text image and data table figures are...
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