One historical contribution of the neolithic period is the

The correct answer is: "the emergence of trade activities, job division and specialization".

The emergence of agriculture and animal domestication, enabled the accumulation of production surplus and gave rise to the first trade activities among human communities during the Neolithic era.

Trade, in turn, fostered job division and specialization. Different people started to be in charge of the different economic activities: hunting, gathering, animal domestication, agriculture, fabrication of tools, etc. The economic products that resulted from these activites were subsequently allocated among all the inhabitants in the country.

the answer to your question is:

strong-mayor system

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this