What was the main reason Allied troops were horrified when they discovered Nazi concentration camps?

They had not expected to find thousands of dead or dying prisoners

Explanation:

One of the main things that made concentration camps so horrific was the way the prisoners were treated. They were malnourished, over-worked (sometimes to the point of death), tortured, raped, and put to death in gruesome and inhumane ways.

isaac newton first proposed that earth was not perfectly round. instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

the idea of the earth being a flat disc is also inconsistent with the fact that a given lunar eclipse is only visible from half of the earth at a time. the only shape that casts a round shadow no matter which direction it is pointed is a sphere, and the ancient greeks deduced that this must mean the earth is spherical.

racism and segregation.