Select all the correct answers.
what were two effects of the louisiana purchase on the united states?
1: it led to a westward migration of people looking for new lands to farm.
2: it encouraged the growth of industries in areas east of the rocky mountains.
3: it led to the growth of us trade along the mississippi waterway.
4: it ensured a lasting peace between the united states and great britain.
5: it led to an eastward migration of american indians from the newly added lands.