Rivers often act as really effective and accessible trade routes, so the historian could use this map to analyse trade routes between Early River Valley Civilizations.
Hope this helps :))
"Natural monopoly" is the one condition among the following choices where the <span>market make unified control necessary or desirable to the public interest. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has come to your help.</span>
This is called the president's inauguration or oath. Please let me know if you need any further help. Kindest Regards