A pair of substances undergoes a change. This change is observed in the form of a difference in energy. Substance A falls from energy level M to energy level N and gives off infrared radiation. Substance B also undergoes a change and has energy that is given off and falls from energy level O to energy level P and gives off ultraviolet radiation. Which transition, from M to N or from O to P, has a greater energy difference? Explain your answer. Use a diagram of the electromagnetic spectrum if necessary.