Use the graph displayed above to answer the following questions.  The information displayed on the graph shows the relative size and source region for immigrants into the United States between 1800 and 2010.A. For the 1800 – 1880 time period, identify the most common source region for immigrants. (.5 points)B. For the 1880 – 1920 time period, identify the most common source region for immigrants. (.5 points)C. Briefly explain why the most common source region changed? What caused the source region for immigrants to change between the 1800-1890 and 1890 -1920 time periods? (1 point)

Alveolar ventilation, the amount of air available for gas exchange, is affected by:

Which of the following likely has the least significant impact on fertility rates (either causing the rate to increase or decrease)?

Use the image displayed above to answer the following questions.  The image shows the global range of values for both Crude Birth Rate and Crude Death Rate.  The data represents the range of values from 2022. A. Identify the statistic that has a smaller range. (1 point) B. Briefly explain why the range of values for this statistic is smaller than the other. (1 point)

The partial pressure of oxygen is greatest:

Briefly explain the impact of immigration on the dependency ratio of a destination country. (1 point)

Match the following situations with the correct stage of the Demographic Transition Model.  You will use each stage only once.

Which is the best example of rural to urban migration within a country?

You are an aid worker for the United Nations High Commission for Refugees, and you have just been assigned a position that manages IDPs – internally displaced persons. When you ask your supervisor to which country you will be assigned, they cynically reply, “Well, take a guess.” To which country should you prepare to travel?

Identify which category of push-pull factors is the most common reason why people decide to migrate. (1 point)