A freely suspended magnet aligns in the north-south direction.
Hence, it aligns itself with the geographic north-south direction.
A magnet always aligns itself in the north-south direction when suspended freely.
A freely suspended magnet aligns itself in the north-south direction in a room and air is sucked from that room through the vacuum pump. So, now there is no air in the room but still, the magnet aligns itself in the north-south direction.
Why does a freely suspended magnet needle points in geographic north-south direction?