The 12 women and 12 men with the best scores advance to the final round. But at the starting, each country can have 2 or 3 competitors.
Freestyle Skiing - Aerials
No, ski cross is where you race against other skiers at the same time. Freestyle skiing is where skiers to jumps and tricks.
For Acrobatic Skiing (freestyle moguls, aerials, ski cross) the skiers competed on Cypress Mountain.
you can go backwards
skiers use jumps (also called kickers or launches) or rails to do Freestyle skiing
I guess there are several tricks that skiers could do. A good example for this is freestyle skiing is a combination of Skiing techniques and acrobatics. In this type of Skiing alone, there are a lot of Ski Tricks executed by Freestyle enthusiasts.
a lot
generally its a bandana that they like that's too thin to use around their neck.
Eva-Maria Brem got chosen for the Olympics because she was one of the best skiers that competed.
Ingemar Stenmark from Sweden who won 86 world cup competitions and several gold in the Olympics. For more skiers see "What are some famous skiers names?"
It depends what type of skiing. For freestyle- Tanner Hall Simon Dumont Sean Pettit For backcountry- Seth Morrison
U.S.