The term 'white coal' is sometimes referred to which of the following?
- A. Geothermal energy
- B. Wind energy
- C. Hydroelectricity
- D. Biomass energy
Explanation
Hydroelectricity is generated by flowing or falling water, so it is often called white coal because water power replaces the role of coal in producing electricity. The term does not refer to geothermal or wind energy.