Change your form of combat, go to the little crossed swords icon and it will show you up to 4 attack style options, hover over it and it will show you what kind of experience you will get for which style, you may click it and it will allow you to use that attack style.
Pest Control.
Scorpians.
In order to get pure defence in Runescape, you kill monsters using defence stance accessed in the combat style thing. That is how you get pure defence in Runescape.
Defence training in runescape is leveling up your defence by kill monsters or people. Start of easy with goblins and when u get to a high lvl, kill greater demons.
It goes up whenever you train Attack, Strength, Defence, Prayer, Summoning, Range, Constitution and Magic
By fighting.
depends if you have good armor, weapon and food you should kill moss or hill giants
By fighting.
40 Defence
40 Defence
no
The length of getting 99 defence on RuneScape depends on how you train it, how long you train it for etc. You should be more specific. Ex. Do you mean non-stop?