The boundary that forms between the 2 air masses is called a front. When air masses meet, the warm air mass always moves above the cold air mass because it is less dense. Which type of front forms when a cold air mass is advancing and moves under a warm air mass pushing it up? A. Warm front

B. Cold front

C. Occluded front

D. Stationary front

What is likely to happen in the long term if the earth continues to absorb more energy than it emits? a. the earth will discontinue recycling energy. b. organisms will begin to compensate for the change by incorporating more energy. c. the overall temperature of the earth will increase. d. the nutrient cycles will happen more frequently. select the best answer from the choices provided a b c d