<span>The answer to this question is COAL. Coal is used
as a solid fossil fuel that people used the most. Coals are used for
electricity, fuel, and heat. Coals that are mined are brought to power plants
to use it as electricity. Coals are being mined from the ground and the country
China is the world’s top coal producer since 1983.</span>
The base level is the lower limit of the erosional process and the ultimate base level is the plains that result from the projection of sea level under the landmass. This process of erosion creates a peneplain.
The base level is dynamic and changes according to the following factors as sea-level changes, tectonic factors, river captures, and sedimentation.
Peneplinasare low featureless deposits that are created by the terminus of the dream where the sediments are merged with the sea.
