Answer: A. Water dam
B. Coal- fired generator
C. Solar panel array
D. Nuclear power reactor
F. Gasoline
Step-by-step explanation:
Water dam is a source of hydroelectrical energy as the energy produced by the high speed water currents can be used to generate electrical energy.
Coal fired generator is a source thermal energy.
Solar panel array converts the heat energy from the sun into electrical energy.
Nuclear power reactor converts the thermal energy from the radiations generated after the fusion and fission reactions of the heavy atoms in a nuclear reactor. The thermal energy is converted into electrical energy.
Gasoline is a source of thermal energy which is used to run the machine or vehicle. This way thermal energy is converted into mechanical energy.