Answer:
As the slab gets to a certain depth, it gets hot enough that it start to melt again. As it melts, it undergoes differentiation and also gets less dense. Low density means that it will start to rise back up again, usually, as granitic magma.
Explanation:
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Answer:
Gold rush and mining opportunities (silver in Nevada)
The opportunity to work in the cattle industry; to be a “cowboy”
Faster travel to the West by railroad; availability of supplies due to the railroad
The opportunity to own land cheaply under the Homestead Act
The discovery of wheat strains adapted to grow in the climate of the Plains.
New inventions allowing them to adapt to life on the Plains, such as the windmill and barbed wire
Adventure and the lure of the “Wild West”
Explanation:
Answer: Egypt took development around the Nile River. Mesopotamia developed between the Tigris and Euphrates rivers. Both Egypt and Mesopotamia had governments. Those governments ran with one main ruler. Egypt had a centralized government with a Pharaoh, instead of a king like Mesopotamia. Both civilizations emerged around 3500 and 3000 BCE. Both civilizations shared differences and similarities between religion, culture etc.
Explanation:
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