it usually occurs through protests.
initially northerners did not want missouri to be included in the union because:
3.) missouri wanted to enter the union as a slave state.
missouri entering as a slave state would break the balance of free and slaves states (of which there were 11 on each side).
the missouri compromise angered because congress had allowed slavery to expand into another state.
without the industrial revolution we wouldn't have the option to go to a shop with everything you will need in it (we call this a supermarket). nothing was mass produced until the introduction of one of the major parts of the industrial revolution: factories