Upper Mantle layer is what produces magma that causes sea floor spreading and volcanoes. :)
Answer:
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Explanation:
Neolithic
The wattle and daub technique was used already in the Neolithic period. It was common for houses of Linear pottery and Rössen cultures of Central Europe, but is also found in Western Asia (Çatalhöyük, Shillourokambos) as well as in North America (Mississippian culture) and South America (Brazil).
John Stuart mill believed in checks and balances
It would be D because it gives the most background and summary info to the questions