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.
Europe had fallen into a state of constant warfare
Answer:
c. The decision to drop the atomic bomb was to end WW II quickly
Explanation:
The decision to use the atomic bomb on Japan was in order to end the World War II quickly and efficiently. By using the atomic bomb, the United States wanted to destroy Japan as soon as possible, as the fighting on land that was going on, even though it was successful, still it was slow and there were lot of casualties on the side of the United States and their allies. By eliminating Japan as a threat, the US forces would have been able to move to Europe and together with the Allies to finish off Germany, and so it was.
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The Stone Age is divided in three distinct periods: the Paleolithic Period or Old Stone Age (30,000 BCE–10,000 BCE), the Mesolithic Period or Middle Stone Age (10,000 BCE–8,000 BCE), and the Neolithic Period or New Stone Age (8,000 BCE–3,000 BCE).
