Earth Science and Environmental Pollution Practice Exam

Reliability and baseload power are what coal excels at. Coal-fired plants are typically run continuously to provide a steady, controllable flow of electricity to meet baseline demand. This makes coal a reliable and relatively predictable energy source, unlike many renewable options that depend on weather. So the statement that energy produced from coal is inconsistent and unreliable is not true.

Coal is indeed a fossil fuel, and it has historically provided relatively cheap energy. It also releases carbon dioxide when burned, which is another well-established fact about coal combustion.