If this is for an essay, you might want to read about Thomas Hobbes and the state of nature. He makes pretty bold claims about why human beings fight one another. Watch a video on it.
The main problems of evidence in dealing with early civilizations is that much of the potential evidence itself--such as tools, homes, etc--has vanished due to the fact that it was made of materials such as clay that could not withstand the test of time and weather.
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Answer:
2. A
3. A
4. C
5. Sorry I'm not sure on this one... I know it's NOT A. (I think it might be B: Both disciplines involve fieldwork.)
Explanation:
He was being careful of the defense funds allocated by NSC-68.
