Choose from:
A). circulatory systems
B). kinetic energy
C). engines
D). Organic compounds
E). organic molecules
F). rays or beams
G). a hydraulic system
H). photons

Fact 1: Agenerator converts kinetic energy into electrical energy. Fact 2: Electricity is a powerful energy source. Given the two facts above, generators convert what into a powerful energy source?
Answer:
B).