How did iron technology help and hurt the Nok civilization?

Which of the follow modern activities would only have been possible after the neolithic revolution

List a few examples of city-states that practiced oligarchy in ancient greece

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.