1.to bomb the sector 1 reactor
2.get it after beating JENOVA BIRTH
3.JENOVA BIRTH
4.because she is the last remaining Ancient and they want to experiment on her so that they can get their hands on the Promised Land which thoeritically(I have no idea how to spell this word) has loads of Mako energy.
5.A dress.
6.because he wanted to be in SOLDIER and be famous
7.cross mountains
8.all of them(Cloud,Barret,Tifa,Aeris,Red XIII,Yuffie,Vincent,Cait Sith and Cid)
9.because she thinks she can handle it on her own and didn't want to burden the others(?)
10.Aeris,she got stabbed in the back and the Masamune went straight through her stomach when Sephiroth "descended" out of nowhere.