Population growth and immigration
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- Population growth and immigration
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Population growth and immigration
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[post_date] => 2024-12-25 11:23:08
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[post_content] => Practice Passage (Question 1-5)
*This passage is the property of Khan Academy and has been reformatted into an AAMC-style interface in their entirety by MedLife Mastery. MedLife Mastery does not endorse and is not an affiliate of Khan Academy.
Zed is a developing country with many promising technical and biological research developments. The majority of the land in Zed is still used for agriculture. There are three major cities all localized along the coast to the east, Wornig, Frenik, and Hindar. Wornig is home to Wornig Industries, a tech company that is coming out with cutting edge advancements in artificial limb technology. Frenik is the main port of Zed, housing the resources for importing and exporting. Hindar University, located in the city of Hindar, has a world-class biochemical research department that is providing essential findings to biochemists around the world. Smaller towns and villages are scattered across the rest of the country typically ranging from 1,400 to 20,000 people.
In the last year, Zed has seen a rapid population increase. The statistics for 2012 are listed in Table 1.
Table 1. Demographics of Zed for 2012. Population data was collected on January 1, 2012. All other data represent January 1, 2012 through December 31, 2012.
Notably, there is a significant amount of immigrants in Zed. Zed draws people from neighboring countries since it provides better education, jobs, and a more promising future for the next generation. In addition, neighboring country Y had a lot of political instability, which led Y citizens to immigrate. Once the “migrant path” from Y to Zed had been firmly established, immigration quickly accelerated based on kin and friendship networks from the same villages in country Y.
Remember:
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[question] => What was the growth rate of Zed for 2012?
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[answer] => 2
[description] => Reason for Correct Answer:
Births and immigrations add to the population. Deaths and emigrations subtract from the population
Current population = initial population + births – deaths + immigrations – emigrations
If a population increases, it has a positive growth rate
Current population = 5,000,000 + 67,400 – 36,250 + 39,150 – 10,900 = 5,059,400
Growth rate = (5,059,400 – 5,000,000)/5,000,000 x 100% = 1.19%
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[answers] => Array
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[0] => Array
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[each_answer] => A. -0.36%
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[1] => Array
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[each_answer] => B. 1.19%
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[2] => Array
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[each_answer] => C. 0.85%
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[each_answer] => D. -2.24%
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[1] => Array
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[quiz_unique_key] => 1403770772
[question] => What is the net migration rate of Zed for 2012?
[value] => Array
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[answer] => 4
[description] => Reason for Correct Answer:
A positive net migration means there were more immigrations than emigrations. A negative net migration means there were more emigrations than immigrations.
Net migration measures the difference between the number of people entering the country and the number of people leaving the country
The net migration rate (per 1000 people) is calculated as:
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[answers] => Array
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[0] => Array
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[each_answer] => A. -10.01 migrants / 1000 people
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[1] => Array
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[each_answer] => B. -2.18 migrants / 1000 people
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[2] => Array
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[each_answer] => C. 7.83 migrants / 1000 people
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[each_answer] => D. 5.65 migrants / 1000 people
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[quiz_unique_key] => 1403770772
[question] => How were major cities like Wornig, Frenik, and Hindar likely formed?
[value] => Array
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[answer] => 1
[description] => Reason for Correct Answer:
Cities were initially made possible because of the architectural and technological advancements during the Industrial Revolution
Urbanization occurs when people move from rural areas to urban areas, increasing the population of cities
Lack of available land often causes people to move to urban areas in search of jobs or housing
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[answers] => Array
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[0] => Array
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[each_answer] => A. People move from rural farming villages to more urban areas along the coast in search of work, a place to live, or a desire for the fast paced city life
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[each_answer] => B. An overwhelming abundance of land caused people to form small, tight-knit communities
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[each_answer] => C. Poor architectural technology forced many people to live in small areas
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[each_answer] => D. The government of Zed ordained that Wornig, Frenik, and Hindar would be the major cities of the country
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[quiz_unique_key] => 1403770772
[question] => Citizens of country Y leaving because of political instability and going to Zed because of education and job opportunities, such factors are best conceptualized as:
[value] => Array
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[answer] => 4
[description] => Reason for Correct Answer:
Factors such as poverty, violence, or war pushes people to escape a country.
Factors such as opportunities for education, better jobs, freedom to discuss political ideas pulls people to a new country.
Pushes such as political instability and pulls such as better opportunities drive people’s migration.
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[answers] => Array
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[0] => Array
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[each_answer] => A. Social escape
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[each_answer] => B. Migrational forces
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[each_answer] => C. Political turmoil
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[each_answer] => D. Push and pull of migration
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[quiz_unique_key] => 1403770772
[question] => Migrant paths established between two countries accelerate the immigration of kin and friendship networks, in other words, family and friends attract more people from the same nation or the same village. Such family and friend networks are examples of:
[value] => Array
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[answer] => 4
[description] => Reason for Correct Answer:
A primary group is typically a small social group whose members share close, personal, enduring relationships.
Examples of primary groups include family, childhood friends, and highly influential social groups.
The immigration of kin and friendship networks is an example of primary group networks.
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[each_answer] => A. Secondary groups
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[each_answer] => B. Exclusive groups
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[each_answer] => C. Inclusive groups
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[each_answer] => D. Primary groups
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