What will most likely happen when an air mass of low temperature exists above a water body at a higher temperature? Humidity of the air mass will decrease. Heat will flow from the air mass to the water body. Heat will transfer from the water to the air. Air molecules closer to the water will become cooler.

Heat will transfer from the water to the air. When a mass of air moves on a warmer surface it is heated by its base. Then thermal instability develops in the lower layers and then extends upwards. If the air initially contained inversions, these are destroyed and a strong gradient is established uniformly in the lower troposphere temperature.