OK PEOPLE EASY POINTS SO SKIING(4HOURS OF IT)

I SAID IT WAS A VIGOROUS ACTIVITY

I JST NEED TO KNOW WHY IT IS

I WILL MARK BRAINLIEST

PLZ ANSWER I NEED HELLPPP

it is a  VIGOROUS because your going at high speeds down a mountains  or slopes at speed that varys and depending on the slow it can mess you up because of right you have to maintains your direction and trust me its not easy ive done skiing

Explanation:

teens need 8-10 hours of sleep. it kind of depends on what time you get up. but prob around 10 or 11 p.m. or 11 or 11: 30 p.m.