Metalworking began a. during the upper paleolithic period. b. with the introductions of bronze, an alloy, or mixture of tin and copper, changed the peoples of europe. c. out of a need for stronger weaponry to used against the increasingly aggressive vikings. d. with, and because of, all of the above circumstances.

Option: b. with the introductions of Bronze, an alloy, or mixture of tin and copper, changed the peoples of Europe.

Explanation:

Metalworking began when people discover bronze. Gold and copper were the early metal which widely used, gold used for making jeweler, while copper for making tools and weapons. Early times, tool making limited and done on a small scale. With the discovery of Bronze, mixing of two metal by metallurgists, metalworking started in Europe. Bronze tools were much stronger than copper.

Answer : Option B) With the introductions of Bronze, an alloy or mixture of tin and copper, changed the peoples of Europe.

Explanation : The metal working began around 6000 BC. It was discovered as the the process in which working with metals was an important task to create individual parts, assemblies, etc. It was when the copper smelting was very common the use of alloy was discovered and manufactured to use. It changed the lives of people of Europe.

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based on the images pictured above, the major difference between the two cathedrals: the cathedral of notre dame and the amiens cathedral, is that the cathedral of notre dame emphasizes the horizontal lines while the amiens cathedral emphasizes the vertical lines.