Answer:
civilization and violence are not mutually exclusive. Sorry if this isn't helpful.
Explanation:
Separate
The sentence uses the word distinctive in the context "three distinct ways". Then the excerpt lists the three ways the 10K is special. Seeing that each of those ways are separate and different it is clear that "distinct" means "separate" in this context.
Answer:
The following is the first one
Explanation: a surface triangle. 45 sides both with a 5.