What is known the cold and dense air blowing down from the mountain slope during the night__________?

A. Anabatic Wind
B. Katabatic wind
C. Lue Wind
D. None of these

The cold and dense air blowing down the mountain slope during the night is known as Katabatic wind. Katabatic wind, also called downslope wind, or gravity wind, wind that blows down a slope because of gravity. It occurs at night, when the highlands radiate heat and are cooled.