yes tons
No. It is in WorldEdit commands.
As long as you have a legit, paid version of Minecraft, joining and hosting a server is 100% free.
You use a plugin like WorldEdit on a bukkit server.
WorldEdit
WorldEdit
You need to have a upgraded account to have a Minecraft Server running on 000webhost.
lavacraft.net
MinecraftServer.exe/jar
There is a WorldEdit mod with which you can destroy them.
If you're using WorldEdit. The command is, /tree redwood
Yes.
You do not need to own Minecraft to host servers for it.