it shows us what life was like for them and how much humans have changed
Answer:
D. People could travel from place to place to exchange goods that led to seasonal markets.
Explanation:
A. The answer doesn't state the word travel, during the Neolithic Revolution the main topic was traveling and immigration.
B. Basically the same as a, though it does talk about food and expansion, it doesn't still talk about traveling trade.
C. Once again, it's not political whats going on during this revolution, it's about traveling trade.
Answer:
How did Nationalism increase tensions among European nations? It can cause intense competition among nations with each seeking to overpower the other. ... A stronger nation takes control or dominates a weaker country or territory.
Involving what? What are you asking for?