Americans seized 9 million acres of native American to make room for settlers and find resources on which they could survive and sell on and because they felt that it was their God given right to do so (Manifest Destiny). I hope this was able to help you.
Because they were rivers, so immediately you know it was a water source. Plus, these rivers flooded, which was beneficial for having fertile soil. The fertile soil meant crops could be planted there.
Children Had to Work
many people lost their Jobs because of new machines
Therefore they Had to move to the big cities to find work in the new factories where they Had to do monotonous and Boring Work(e.g. Control the machines)
This Work was badly paid
The cities were dirty and the Apartments often very small
But
New machines that Made Life easier ( staem engines)
The word you should have received was:
Independence
