Which of the following is NOT true regarding the burning of biodiesel versus gasoline in automobile engines:

W) biodiesel combustion does not emit SO\({}{2}\)

X) biodiesel contains more oxygen than gasoline

Y) the CO\({}{2}\) released when biodiesel is burned is the same CO\({}{2}\) the plants removed from the atmosphere as they grew

Z) the energy content per gallon of biodiesel is approximately 28% lower than that of ethanol
Z) THE ENERGY CONTENT PER GALLON OF BIODIESEL IS APPROXIMATELY 28% LOWER THAN THAT OF ETHANOL