Crossword Puzzle 1º - U 2 - CrosswordsOnline version Revise unit 2 with this crosswords by Jaime Alonso 1 2 Modification of the behaviour of animals 3 Neolithic people lived in... Then, they will become villages 4 Economic activity 5 Processes and techniques for the extraction and treatment of metals for their use 6 7 Characteristic of Neolithic painting 8 Lifestyle 9 Revolution 10 Exchange of products wihout money 11 Economic activity 12 They stopped being predators and they became... 13 Technique for working metals 14 Large stone 15 Used for keeping food 16 Religion 17 Metal 18 19 20 Metal 21 Invention in the Age of Metas 22 Metal 19 2 17 15 4 14 13 20 11 21 9 16 6 5 3 1 22 18 8 12 10