Prayer, Magic, Attack, Defense, Strength, Range, and Constitution all affect your Combat level (the level that people see when they roll their mouse over you). You can raise any of these to help you, as you put it, level up.
The highest level for all skills except Dungeoneering is 99. Dungeoneering can be trained up to level 120.
no. you just wont have a lot to do on Runescape. you can't kill stuff. you can't level up your skills (well you can just it's going to take a long time)hope that helps ;) GAY
No. Only combat skills will raise your combat level. Just remember that prayer and summoning will raise your combat if your level them up. All other skills will not.
Runescape bots are programs that people use to quickly level up there skills. i.e it does all of the work for them Botting gets you a permanent ban with no second chances.
By fighting. That will increase your levels in different skills, which will in turn affect your combat level. Note that the higher you are, the slower it will be to advance.
To get your hitpoints level up in RuneScape, you must gain the appropriate amount of experience points that it says you need. That means you have to do a lot of combat related things, such as melee, magic, or range. Those skills will train your hitpoints when you use them.
By training. You get the combat level up by fighting. You get other skills up by training that specific skill. Ask again for specific skills, or search online guides, such as runescape.wikia.com, for specific skills.
Train skills.
killing Moss giants my help you level up a tad bit fast for your current attack level.
to change your stats on runescape all you have to do is level up.
no
You can't de-level your skills in any way, only level them up. You can however avoid leveling that skill completely by all means.