I. Coal as an Energy Resource

Coal is a flammable carbon-rich rock formed by a natural geological process that takes place over millions of years. Just like oil, coal is not a renewable resource because coal is used to create energy at a faster rate than coal can be replenished through its natural formation process.

Coal is a popular energy resource because it is relatively easy to mine, transport across long distances, store, and burn. The process of turning coal energy into electricity takes...