What impact did many state constitutions have on the separation of church and state affairs?
States could not support an established church.
The theory that was used to justify claims of racial superiority was <u><em>social Darwinism.</em></u>
Social Darwinism was a group of ideologies that arose in the late 1800s in which Charles Darwin´s theory of evolution by natural selection, was used to justify certain social views.
According to the theory, the weak were diminished while the strong grew in power over the weak.
One of the persons who adopted social Darwinism was Adolf Hitler, who considered that the German master race had grown weak due to the influence of non-Aryans, so he targeted certain groups of people that he considered biologically inferior for extermination such as jews, homosexuals, etc.
Britain became the strongest power
More grain was produced elsewhere as well as the fact that increasingly more grain was produced around the same demand of grain.
Where is the map? Without the map I cannot give you the answer.