Fact 1: Abattery converts chemical energy into electrical energy. Fact 2: Electricity is a form of energy and is sometimes called electrical energy. Given the two facts above, how does a battery work?

[i] dormant state
[ii] hydrogen and oxygen
[iii] Throwing it away
[iv] Charging it
[v] It converts power
[vi] Plugging it in
[vii] It remains dormant
[viii] to move people
Answer:
[v]