There can be any number of reasons to partition a disk. The main being organisation. You want to have all one type of files or programs in one spot, so you create a partition and put all of one type...
If you have a big hard drive to increase performance it's better to split the drive in smaller ones (partitions). Also, even so the partitions are located on the same different drive logically they...
1. because you have 2
2. because if u dont u will get a low grade (if your in school)
3. (i kno 3 answers, im awesome like that) because you feel like it :P and if you dont the soccer player who...