The spread and development of industry in the United States, as well as areas of favorable climate were factors responsible to change population patterns in America.
Specially during the late years of the 19th century and the World Wars, the need for workers grew significantly with a growth in production and industrial development, and that's attracted many people (that moved from countryside regions and settlements to major cities). Favorable climate conditions has attracted farmers and businesses for generations; with a constant growth in demand for supplies, raw materials and food, areas with good climate conditions are seen as opportunities for profit.
That's why these 2 factors (industry and climate) are responsible for the changes that occurred in the population patterns in the US.
The battle of Poitiers---better known as the battle of Tours 732 CE. The franks obviously prepared to resist the muslims so their victory indicates they viewed muslim expansion into europe as a threat.
<span>D. It was an ecological transformation.</span> Columbian Exchange was the introduction of Old World plants and animals into the New World and the other way. An example of this was the introduction of tomatoes and potatoes to Europe.
