Which geographic factor had the greatest influence on the early history of south asia and china? a- river valleys b-island locations c-vast coastlines d-tropical rain forests

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.