I have to say beam because you can fall much more easier and hurt yourself. In floor not hit anything on your way down plus there's really springy ground. Bars and vault you could hit something hard (bars you can rip your skin too) but your not doing flips on a tiny pole.
From hardest to least I'd put Beam, Bars, Vault, Floor. I put it in the way you can hurt yourself easier.
The Marathon because it is long or the steeplechase because there are a few jumps (It has tripped people, believe me).
100 metres
Rowing
The Marathon.
Yes it is a Olympic event :)
idi
The Marathon.
yes swimming is an olympic event
probably the 100m freestyle...
100 meter dash.
the olympic games because lots of countries take part
Hurdles -------------------- Men's 100m