Air will move from area X to area Y.
This is because air moves from areas of higher temperature to areas of lower temperature. Since area X has a temperature of 22ºC, and both areas Y and Z have lower temperatures of 18ºC, the air will move from area X (the warmer area) to areas Y and Z (the cooler areas).
However, as the options provided are incomplete, if I consider only the existing options with regard to areas Y and Z, air will move from area Y to area Z since both areas have the same temperature (18ºC), and if air were to move between them, it could be considered negligible. Therefore, I would conclude that the answer is more accurately area X to area Y, but based on your choices, the best choice is area Y to area Z, even though this may not represent a significant movement of air.
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