Process:  -Coal is harvested from a coal mine -The coal is transported either by train or truck to power station -The coal is burned in a furnace -Water is turned into steam in the boiler -The steam is cooled in cooling towers -The steam turns the turbines -The generator makes electricity -The electricity is sent through transformers.
 Question: What is the effect of electric fires are more economical. on more coal arriving at the power station.?
against