The natural barriers around the Fertile Crescent are the deserts and the mountains.
The people that migrated in the Fertile Crescent, in what is known as Mesopotamia, moved in there because it was the only place that had nice conditions for living and prosper. The Mesopotamia region was between two very big rivers, the Tigris and Euphrates rivers. These two rivers were flooding each year and creating a new very fertile soil, which allowed the people to be engaged in agriculture and have a stable food source, and also to have a stable fresh water source.
On the other hand, the deserts and the mountains, were not providing these condition. The deserts are too dry, there's not enough food and water, and life is extremely hard and has to be in a nomadic style. The mountains are very restrictive in what they offer and in how big of a part of the year. While the summers might be good and provide nice living conditions, the winters are very cruel and can bring death very easily.
The correct answer is B) 18.
Eighteen of the 50 states grant their citizens the power of recall.
The power of recall in a state refers to the possibility in some states to remove an elected official from office when citizens deem appropriate through another vote before the end of that official term. Citizens have to sign a petition asking for the removal of the official for inappropriate conduct, corruptions acts or many other valid reasons.
Horses brought over by the Europeans made hunting buffalo easier.
<span />
Answer:
The American Revolution was a war for independence from Britain with many battles and diplomatic meetings such as the Continental Congresses. it was caused by the relentless taxation of the British government and other disputes such as the Boston Massacre.