Neolithic, also known as the New Stone Age, was a time period roughly from 9000 BC to 5000 BC, it was the last period of the age before wood working began. The tools available were made from natural materials including bone, antler, hide, stone, wood, grasses, animal fibers, and the use of water. These tools were used by people to cut such as the hand axe, chopper, adze, and Celt.
The Copper Age is the early part of the Bronze Age. Copper came into use before 5,000 BC and bronze around 3,100 BC, although the times vary by region. Copper and bronze were used for the same types of tools as stone such as axes and chisels, but the new, less brittle, more durable material cut better. Bronze was cast into desired shapes and if damaged could be recast. A new tool developed in the copper age is the saw.
The earliest large-scale buildings for which evidence survives have been found in ancient Mesopotamia. The smaller dwellings only survive in traces of foundations, but the later civilizations built very sizable structures in the forms of palaces, temples and ziggurats and took particular care to build them out of materials that last, which has ensured that very considerable parts have remained intact. Major technical achievement is evidenced by the construction of great cities such as Uruk and Ur. The Ziggurat of Ur is an outstanding building of the period, despite major reconstruction work.
I think the answer is... C. Your welcome!
After the war, many soldiers were laid off and they were unappreciated and had their pay cuts drastically reduced
The U.S were making ammunitions to be sold to other allies which was positive and slightly helpful for the economy
Due to President Wilson's choice to join WW1, The federal government did still suffer unbearable losses of money due to the world war itself and hiring military services etc.
The great depression (1914 - 1918) had the largest impact on the American economy since countries like England also relied on the trading with the U.S, because...they had no money to buy new materials and more! High unemployment rates and low prices and wages
