Boron production trends for selected countries. Graph by juk Bhattacharyya, University of Wisconsin-Whitewater, based on data from USGS Mineral Information (http://minerals.usgs.gov/minerals/pubs/commodity/boron/)
Originally uploaded in Integrate:Teaching for Sustainability:InTeGrate Modules:Humans' Dependence on Earth's Mineral Resources.
Image 43852 is a 720 by 960 pixel WebP
Uploaded:
Mar2 14