[TG.01]The diagram below shows the layers in Earth's interior. Source: http://www. nasa. gov/worldbook earth worldbook. html
Which of these statements best describes a difference between Layer A and Layer B?
Layer B is solid but layer A is molten.
O Layer A is solid but layer B is molten.
O Layer A moves in cyclic pattern but Layer B is stationary.
O Layer B moves in cyclic pattern but Layer A is stationary.

Sorry i don’t know what to do

Ibelieve the answer is b

Scientific classification

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.