25. Hydraulic fracturing, or fracking, is a technique for extracting fossil fuels from rock formations deep below Earth's surface. Which TWO of the following statements are true about hydraulic fracturing?
Answer: B,C
Hydraulic fracturing has environmental impacts that are not fully understood and is a subject of public policy debates.
The two statements that are true about hydraulic fracturing are that its impact on the environment is not entirely understood, and it is a controversial practice that is the focus of public policy debates.
A) It provides access to a renewable energy resource.
This statement is incorrect because hydraulic fracturing is primarily used for extracting fossil fuels such as oil and natural gas, which are non-renewable resources. Therefore, it does not provide access to renewable energy resources.
B) Its impact on the environment is not entirely understood.
This statement is correct as there are ongoing studies and debates regarding the environmental effects of hydraulic fracturing. Concerns include potential groundwater contamination and seismic activity, indicating that the full impact on ecosystems and human health is still being researched.
C) It is a controversial practice that is the focus of public policy debates.
This statement is also correct since hydraulic fracturing has sparked significant debate among policymakers, environmentalists, and the public. Issues such as regulatory practices, environmental risks, and economic benefits are frequently discussed in public policy forums, highlighting its controversial nature.
D) It is a cost-effective method for cleaning and replenishing groundwater.
This statement is incorrect because hydraulic fracturing is not designed for cleaning or replenishing groundwater. In fact, the process raises concerns about potential contamination of groundwater resources, making this claim misleading.
Conclusion
The correct answers, B and C, highlight the complexities and ongoing debates surrounding hydraulic fracturing, particularly regarding its environmental impact and public perception. Options A and D fail to recognize the non-renewable nature of fossil fuels and the potential negative effects on water resources, reinforcing why they are not valid statements about hydraulic fracturing.