The treaty which ended World War I led to the start of World War II less than 20 years later this is because how harsh it treated Germany and how angry Germans were about this situation also they forced Germany to admit all guilt for the war and they require Germany to pay a large amount of money in reparations to the allies
The answer to this question is option 2? I'm not really sure but I'm confident!
Building techniques improved, iron became more common, and hydraulics were used to dig riverbeds deeper. So less floods happened that destroyed farms and endangered lives.
By population wichbthe highest population would be Virginia
