Very early societies did not have a written language or even ways to efficienly preserve information, so we can reject the options "maps" and "written records".
As far as the other two options go - ice core samples and tree rings, both are correct! probably "ice core" samples are the better answer, since only fossilized tree rings would tell us about the very early societies.
Bismarck did not unify Germnay but he wanted to unify the North German States under the Prussian Control.
Hi there!
Objects created and used by humans are called man-made. This means that they were made by man, not nature. Man-made items, such as houses, buildings, electronics, and more, are generally used by man as well.
Hope this helps!! :)
