You can craft air runes just south of the Grand Exchange in Varrock
There is no special soul altar. From runescape.wikia.com: "The Ourania rune altar allows runecrafters to craft a random selection of runes, including the soul rune." So, if you go to the Ourania altar, you will craft random runes, including soul runes now and then.
You craft them into runes.
Water runes; they give good experience, AND they have shot up in price to 44 gp at the Grand Exchange (as of 20/9/2009). They are by far the best moneymaking rune.
Pure essence can be used to create chaos, blood, death, soul, nature or cosmic runesANDAir, mind, fire, water, earth and body runes, which can be made using rune essence too.
Yes he can but he but he won't be able to trade them while he is still a f2p.
lumby swamp
buy them from ge you dooush
crafting runes at alters. Use runes ess at certain alter to craft those runes. Eg water alter you crft water runes.
At the air altar in Varrock.
The bestest and fastest way is to Craft Nature Runes.
The best way to get 24M is to craft nature runes.
Get rune essence and craft them at the air altar.