20 why would the portage railroad have been needed for a canal system? to deliver passengers to the site of the canal entrance to take the goods back up river after they were purchased used a special system to take loaded boats across high elevations it was the combination for owners to travel beside their wares

Used a special system to take loaded boats across high elevations

Explanation:

I found read about it in my History assignment rn. I can update when I turn it in :).

john maynrd keynes developed new economic respose to the                           ( b. great depression if the 1930's)

c. pro-democracy demonstrations.