| http://www.w3.org/ns/prov#value | - Fracking is a process that extracts natural gas from shale rock layers deep within the Earth by drilling and injecting highly pressurized fracking fluids into the bedrock.Critics of the process say it requires using up to 600 types of chemicals, including known carcinogens and toxins that leach into and contaminate groundwater and cause other hazards such as earthquakes.
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