Which was not a factor in the development of cities in mesopotamia?

1.plentiful food supplies made it easier for trade and new jobs.

2.silt left behind by floods made the soil fertile and could grow more food.

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3.many natural barriers- such as mountains- led to less warfare in the region.

4.the development of irrigation systems allowed water into drier areas and

the population grow.

By the end of the 1800s, there was a change in the nature of the immigrants coming to the united states. immigration from northern europe—england, ireland, germany, and scandinavia—declined, while immigration from italy, russia, and austria-hungary grew. in fact, between 1900 and 1910, more than three-fourths of all immigrants came from these three countries. unfortunately, these countries were far removed england, the home of our founders, and the immigrants who came from them had a hard time adjusting to life in their new country.

The three estates social system in france ensured balanced representation of all people and treated each social group fairly. true or false ? why?

Many blacks moved from the south to northern cities during world war li looking for employment. after the war, a number of them lost their jobs. why did this happen?