Your answer would be China
Answer:
This is known as the nature-nuture controversy.
Explanation:
Because there wasn't enough water or rain to grow certain type of crops that require a certain amount of water that they did not have.
the answer to question 5 could be transport.
the answer to question 8 is most likely to preserve the union. i'm not too sure about 6 and 7. if there was a word bank or something i could be more help :)