Increase extremist groups because the more people ten the most that happens
This is false!
An important part of the Greek civilization was the island of Crete, which is not contiguous with the rest of the Peloponnese. Additionally there were other important sites of the Greek culture on other Islands in the Aegean Sea and in Turkey - we still find their ruins and remains today.
The first one, valleys. Rivers had to be built over, no one wanted their farms to be turned into a railroad (or at least those with common sense), and deserts had no water and was really hot during the day and cold at night.
The Arctic ocean is the smallest of the world's five oceans