Yes, as long as you don't use it with any other conflicting mods, or mods that cause the build craft mod to break.
Some are: Not enough Items, Buildcraft, Industrial craft 2, Redstone power
you cant without mods
No minecraft mods don't cost any money but it sometimes may be a project to get them.
depends on the mod your downloading
No
You need mods. I would look on YouTube.
You can go on youtube. search for mods and then click on a video for mods then go to the description of the video and download in the links or you can go to minecraft forums.
yes there are there like a lot but just look there everywhere
Currently there is no use for Ender pearls. There will be a use for them in the future, but we do not know what that use is at this time. However, there are user made mods to Minecraft that allow you to craft objects with Ender pearls.
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