Which condition suggests that a change from fair to stormy weather is most likely on the way
a. constant air pressure
b. decreasing air pressure
c. decreasing wind speed
d. increasing air pressure

B.Decreasing air pressure.
   Increasing air pressure points towards sunny/clear weather.

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.