There were many reasons. For starters, it involved getting rid of a large number of Native Americans, and while some supported this, others opposed it as they were peaceful. Another thing was that this meant the introduction of new states and it deepened the division based on whether the states should be slave states or non-slave states. Also they involved war with Mexico and some wanted this and some didn't.
Saving is setting aside money you don't spend now, and you only use it for emergencies.
Investing is using some of your money with the aim of making it grow, by buying assets that might increase in value
. . . that would be a <u><em>clipper ship</em></u>
this would be a larger vessel meant for traveling long distances quickly & smoothly resulting from it's construction using a narrow/streamlined body & large sail spread to catch the wind.
The monarchy and the autocracy both have a head. The head is one of the powerful group. As they continue as leaders they would become a stronger group altogether. So basically one leader of the two groups that controls everything and is the most powerful one.