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West Virginia groundwater not affected by fracking, but surface water is
West Virginia groundwater not affected by fracking surface water is
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2017/4/27
Fracking has not contaminated groundwater in northwestern West Virginia, but accidental spills of fracking wastewater may pose a threat to surface water in the region, according to a new study led by ...
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NSF awards grants for four new critical zone observatories to study Earth surface processes(图)
living environment zone
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2014/3/17
The region between the top of the forest canopy and the base of weathered rock: our living environment and Earth's critical zone.