Pretty sure it's outer core, lower mantle because the inner core is solid iron
Answer:
Cities grew as they became sites of industrial production, centers for banking and other financial networks, the intersections of continental trade routes, and access points for global empires. Other European cities experienced similar or even more rapid periods of growth.
To be frank, I don't think your question is specific enough, but I would say that the answer would be the Rocky mountains, or just mountains. those are the only major kinds of landforms I can think of
Water because they might have a competition over it
