When a cold front moves over a land region that has warm, moist air, a transfer of energy occurs. Cold air sinks and pushes warmer air upward. As energy is removed from the air, which change will most likely take place?

Choices: (a). Ozone in the atmosphere will decrease.; (b). Less ultraviolet radiation will reach the land.; (c). More water will be absorbed from the area lakes.; (d). Water in the atmosphere will undergo a phase change.;
(d).