Identify changes brought about by migration. 1.knowledge is shared between cultures. 2.some cultures are displaced by other ones migrating into their region. 3.different cultures do not mingle, thereby creating ethnic problems. 4.people migrating into other regions become slaves.

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.