obsolescence
Number of extra items
overpowering
Pottery means making items (dishes, pots, decorative items, etc.) out of baked clay.
Set.
It means they keep making the same overall profit.
it means you are making a closeing in a letter
Type your answer here... superimposed
mixing
items with equal importance have the same numeral or letter.
No, to be able to trade means that you have a surplus. They were not growing or making items that were in surplus and it was a subsistence living for them.
improvisation
"Douze" means "twelve" in English.