TeXes Science Practice Test

Which of the following is considered a low-cost fossil fuel?

1. Coal

2. Peat

3. Natural gas

4. Oil

The correct answer is: Peat

Peat is often considered a low-cost fossil fuel because it is an accumulation of decayed organic matter that is found in wetlands and can be harvested relatively easily and inexpensively compared to other fossil fuels. It's a precursor to coal and is sometimes used as a fuel source, particularly in regions where it is abundant. In contrast, coal, natural gas, and oil tend to require more complex extraction and processing techniques, which can increase their cost. Coal mining can involve extensive operations, and the environmental impact and regulatory factors often contribute to higher costs. Natural gas extraction, particularly with methods like hydraulic fracturing, involves significant investment in technology and infrastructure. Oil extraction involves drilling and refining processes that can be capital-intensive. While these other fossil fuels may also have variable pricing based on market factors, peat's lower investment and operational requirements often position it as a more economical option for energy in certain contexts, especially in local or small-scale applications.