Answer:
The Scientific Revolution led to the creation of new knowledge systems, social hierarchies, and networks of thinkers. It also affected production and distribution.
I believe the answer is research though im not 100% certain.
Many say that Truman was justified in dropping the first bomb and it kept a land invasion of Japan from occurring but that he didn't give the Japanese enough time to surrender and that the second bomb was ethically problematic.
Answer:
Darwin's main contribution to the theory of evolution was his theory of natural selection.
Explanation:
Natural selection is the phenomenon that some organisms from a particular population fit better into their environment, that is, are more likely to provide surviving offspring than less well-adapted organisms. The best adapted organisms will increasingly gain the upper hand within the population (survival of the fittest). It is thus one of the mechanisms of evolution. Mutations in, and recombinations of, the genetic material of the organisms cause the genetic variation in the population, allowing this selection.