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:
It created the first global economy.
Answer:
there knowadgle about hunting fishing and farming
Explanation:
Houses were scarce, people had to live is cramped places, and overcrowded places. Political groups came together or emerged