People generally move in climates where it's warm, but not too hot. That way they can hunt, raise livestock, and grow food for everyone. Also, it's just a nice climate in general to stay in. Hope this helped :)
The answer is faults because when divergent boundaries occur, the tectonic plates move away from each other, therefor creating a fault in the earths crust.
Assuming this involves another form of shifting tectonic plates, the answer would be earthquakes. Another form of the question is asking for continental drift.
Greece, Italy, and Spain are known as Mediterranean climates.