described at URL: https://svs.gsfc.nasa.gov/30479 URL: https://svs.gsfc.nasa.gov/vis/a030000/a030400/a030479/dead_zones_crops_particulate_carbon.pptx...
gov/30479 URL: https://svs.gsfc.nasa.gov/vis/a030000/a030400/a030479/dead_zones_crops_particulate_carbon.png determination method or standard: JImagehash...
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