OPT:
[A]. Something studied by Michael Faraday
[B]. Mutagenic chemicals
[C]. a hemisphere is tilted away from the sun
[D]. fissures of hot, acidic water
[E]. chemical to mechanical energy
[F]. absorb light energy
[G]. electromagnetic energy
[H]. Slowing the transfer of heat

Fact 1: Magnetism can cause objects to repel each other. Fact 2: Michael Faraday discovered that a magnetic field can generate an electric current. Given the two facts above, what can cause objects to repel each other?
Answer:
[A].