Carefully examine this map of the United States. Use the key to help you interpret the data about city population and territorial expansion. Write three questions that come to mind when you are looking at the map about where people chose to settle in 1840. Consider the factors that would influence settlement.

where are the statements?

a. poison gas was sprayed over battlefields by airplanes to weaken enemy positions before major attacks.

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.

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