The author who proposed the theory of "natural selection," which other people called "survival of the fittest" was named Charles Darwin. These two ideas are the founding basis of the theory of evolution.
Answer: To let the black kids in the school without getting hurt
Explanation
Massive retaliation, also known as a massive response or massive deterrence, is a military doctrine and nuclear strategy in which a state commits itself to retaliate in much greater force in the event of an attack.
The Industrial Revolution impacted American society economically in a very positive way, since products were being produced en masse and exported and consumed at great profit. Socially, industrialization greatly helped create a middle class, because many more people were able to find employment. Politically, it put the focos on this middle class since they were now a major voitng block. And morally it led to a loss of morals since many factory owners did not care about the well-being of their workers.