Which geographic feature did the british use in 1763 as a boundary to restrict the westward settlement of american colonists

Me < 3 there are multiple ‘3rd party’ political parties in the us. what are the benefits of having 3rd parties? what are the disadvantages of being a member of one? would the u. s. benefit if there were more 3rd parties created, more support for the current ones, or would it be best to get rid of them altogether? why?

How did the industrial revolution give an advantage to industrialized european nations over non-industriallized nations?

What is dussel's profession? a. law b. business c. dentistry fyi: this is based on the story anne franks