The correct answer here is to establish Germany's war guilt.
With this article, it is established clearly that the war was Germany's fault, and of her allies. Germany accepted this. What all of this means is that now as the both guilty and losing party Germany had to accept things the Allies demanded of her. The Allies had all the power in this negotiations.
Some of the pull factor codes were things like the Homestead acts which were a series of acts on land allocation. For example, if you went westwards, the country would give you a huge piece of land which would become fully yours after five years of successful agricultural business.
It is because of subduction<span>: oceanic crust tends to get colder and denser with age as it spreads off the mid-ocean ridges. It gets so dense, that it sinks in the upper </span><span>mantle </span><span>(subduction). This is like a giant recycling system for oceanic lithosphere! Because continental crust is lighter than oceanic crust, continental crust cannot subduct. We therefore still have some very </span>old continental rocks<span> at the surface of the Earth.</span>
