Which is the most abundant fossil fuel?

• A. Oil
• B. Coal
• C. Natural Gas
• D. Nuclear

Answer: (B)

In energy resources, abundance means how much of a resource can be economically recovered with current technology and prices. Coal has the largest stock of proven reserves among fossil fuels, so it’s the most abundant. This comes from vast, widespread coal-forming deposits created over long geological periods and found in thick seams across many regions, making them economically recoverable on a large scale. Oil and natural gas are more concentrated in fewer reservoirs and have been depleted more in many areas, so their total recoverable amounts are smaller even though they’re more energy-dense. Nuclear is not a fossil fuel, so it isn’t part of this comparison.