35. 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's environmental impact is not fully understood and it is a controversial practice in public policy debates.
Hydraulic fracturing is often scrutinized for its environmental implications and its role in ongoing public policy discussions. Both the uncertainty regarding its environmental effects and its controversial nature highlight significant aspects of this extraction technique.
A) It provides access to a renewable energy resource.
This statement is incorrect as hydraulic fracturing targets fossil fuels, which are non-renewable energy resources. The primary goal of fracking is to extract oil and natural gas from deep rock formations, rather than accessing renewable energy sources such as solar or wind power.
B) Its impact on the environment is not entirely understood.
This statement is true. The environmental consequences of hydraulic fracturing remain a subject of extensive research and debate. Concerns include potential groundwater contamination, air quality issues, and the effects on local ecosystems, indicating that our understanding is still evolving.
C) It is a controversial practice that is the focus of public policy debates.
This statement is also true. Hydraulic fracturing has sparked significant controversy due to its environmental implications, economic benefits, and the regulatory challenges it poses. This has led to heated discussions among policymakers, environmentalists, and industry stakeholders.
D) It is a cost-effective method for cleaning and replenishing groundwater.
This statement is incorrect. Hydraulic fracturing is not designed for cleaning or replenishing groundwater; rather, it is a method to extract fossil fuels. In fact, concerns about groundwater contamination are one of the key criticisms of the practice.
Conclusion
The accurate understanding of hydraulic fracturing involves acknowledging both its uncertain environmental impact and its controversial status within public policy discussions. Options B and C effectively capture the essence of the complexities and debates surrounding this extraction technique, while the other options fail to address the core issues accurately.