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Question:

Which of the following would best support the idea that “fracking,” shooting water and chemicals into the ground at a high pressure to gain access to underground gas stores, may be hazardous to the environment?

A a letter in the science journal Climatic Change that includes results from research on fracking showing that it may be more damaging to the environment than burning coal
Explaination

A letter in the science journal Climatic Change that includes results from some research on fracking showing that it may be more damaging to the environment than burning coal. Only this choice uses science-based research to back up an argument. All of the other choices involve emotional or inconclusive approaches to the issue.