Final answer:
Natural gas offers advantages like abundant reserves, lower CO2 emissions compared to coal, high energy density, and ease of transport through pipelines, though it is a nonrenewable resource.
Step-by-step explanation:
The biggest advantages of natural gas as a fuel source include its abundant reserves, relatively low carbon dioxide emissions when burned compared to other fossil fuels like coal, its high energy density, and the ability to be easily transportable in pipelines. While it is known for being a cleaner burning fuel, it is important to note that natural gas is not renewable and sustainable; it is a nonrenewable resource consisting primarily of methane. In terms of carbon emissions, natural gas combustion releases approximately 50-60% less CO₂ compared to coal combustion, making it a more climate-friendly option among fossil fuels.