Wool can be crafted into paintings and beds. Otherwise, it can be used as a building material. Or with wool dyes you can make pixel art.
You can make beds, paintings or dye white wool into other colors of wool
The number (or data value) for wool is 35.
You can use wool for making beds and paintings. I'm not sure about the painting but I know you can make a bed in Minecraft PE
No, you need wool.
No, they do not.
You can dye wool with it, or you can create decorative blocks of it using 9 pieces.
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wool in minecraft
you can make beds and colored wool if you find other things
You have to put a cactus in a furnace and then apply the resulting dye to the wool.
Kill a sheep or get some sheers
For colouring wool blocks.
First, you have to find sheep with wool. Then, use your dyes to dye its wool to a certain color. Then, kill it or shave it to get the wool.
there is no "carpet" item/block in minecraft, but people use different colored wool as carpet for minecraft.