Answer:
<em>causes : </em>
<em>efforts to mine coal, european imperialism, and the emergence of capitalism.</em>
<em></em>
<em>consequences : </em>
<em>poor working conditions, low wages, child labor, and pollution.</em>
The doctrine that allowed people living in the territories to decide the issue of slavery through their governmental bodies was called popular sovereignty.
Created a Domino effect of other Countries Declaring their independence.
