Answer:
Water vapour is an efficient greenhouse emission, because it will absorb radio wave radiation and radiates it back to the surface, so contributive to warming. when put next to alternative greenhouse gases, water vapour stays within the atmosphere for a way shorter amount of your time, However, When you exhale and it's cold outside, though, the vapour in your breath loses its energy quickly. instead of continued to maneuver freely, the molecules begin to pack themselves closely along. As they are doing this, they cut down and start to alter into either liquid or solid varieties of water.