The three most dangerous sports

1.Ice climbing is less difficult than Sailing.
2.Hand -gliding is the least difficult of the three sports.
3.Sailing is less dangerous than hang - gliding.
4.Ice climbing is the least expensive of the three sports.
5.Sailing is more expensive than hang -gliding.
6. Hang - gliding is more dangerous than Sailing.
7.Ice climbing is the most dangerous of the three sports.

8.Hang -gliding is more difficult than ice climbing.