I believe to start Cata quests you need to be at least leve 78, as with BC you needed 58, WotLK you needed 68 and so on.
I do believe it is level 10 that you are able to que up for battlegrounds and then level 15 for random dungeons.
Battlegrounds are entered at every level divisible by 10; the last Battleground accessible in a bracket ends with level X9, so level 10-19, 20-29, 30-39 and so on.
Currently, at this writing, the max level on official Blizzard World of Warcraft servers is 80.Upon the release of the newest expansion Cataclysm the max level will be increased to 85.
Kara is short for "Karazhan", the first 10 man raid content in the MMORPG "World of Warcraft". Requires a key from a long chain quest to enter and at least level 70. -------------------------------------------------------------------------------------------------------- No longer requires a key to enter. You just have to have someone else open the door for you.
Private servers go against the Terms of Service and other policies that you agree to whenever you install or upgrade the World of Warcraft client. On the official servers, you can level completly through battlegrounds if you so desire, but it might take longer as you don't get quite as much experience as you do questing and running dungeons.
Yes, a level 52 is able to get into Sunken Temple in World of Warcraft.
25
A level 60 raid.
?? boss
Currently in Mists of Pandaria, the latest expansion to World of Warcraft, there are 90 levels.
One can purchase max level World of Warcraft accounts from a site that offers the services of selling World of Warcraft accounts. One example includes "BuyMMOAccounts".
Tanaris
Outlands..Hellfire Peninsula