3.1 Population Growth Quiz

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3.1 Population Growth Quiz - Quiz

The population on earth is growing on a daily basis currently we have more than seven billion people around the globe. Learning how to control, calculate and increase population is a very important skill. Do you believe you possess this skill? Tae the quiz below and let the facts speak for themselves.


Questions and Answers
  • 1. 

    Which of the following is used to calculate the change in population size?

    • A.

      (Births + Immigration) + (Deaths + Emigration)

    • B.

      (Births + Immigration) - (Deaths + Emigration)

    • C.

      (Births - Immigration) - (Deaths - Emigration)

    • D.

      Births - Deaths + Population

    Correct Answer
    B. (Births + Immigration) - (Deaths + Emigration)
    Explanation
    The correct answer is (Births + Immigration) - (Deaths + Emigration). This equation calculates the change in population size by taking into account the number of births and immigrants added to the population, and subtracting the number of deaths and emigrants leaving the population. This calculation allows for a comprehensive understanding of the net change in population size, considering both natural increase and migration.

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  • 2. 

    A population will continue to grow if births + immigrants is ________________ deaths + emigration. 

    • A.

      Less than

    • B.

      More than

    • C.

      Equal to

    • D.

      Irrelevant to

    Correct Answer
    B. More than
    Explanation
    If the number of births and immigrants is greater than the number of deaths and emigration, the population will continue to grow. This is because the addition of new individuals through births and immigration exceeds the loss of individuals through deaths and emigration.

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  • 3. 

    The following data table shows the yearly births and deaths in a population of bald eagles in San Antonio, Texas.  Assuming there is no immigration or emigration, determine whether the population of eagles is increasing or decreasing.

    • A.

      Increasing

    • B.

      Decreasing

    Correct Answer
    B. Decreasing
    Explanation
    Based on the given data table, we can determine whether the population of eagles is increasing or decreasing. Since the question states that there is no immigration or emigration, we can focus solely on the births and deaths. If the number of births is consistently lower than the number of deaths over the years, it indicates a decrease in the population. Conversely, if the number of births is consistently higher than the number of deaths, it indicates an increase in the population. Without further information, it is not possible to provide a specific explanation for this answer.

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  • 4. 

    Zebras are a major tourist attraction in West Africa, but local governments are worried that the population is declining. Use the data below to calculate the actual population growth.  Births: 25 zebras Deaths: 34 zebras Immigration: 12 zebras Emigration: 42 zebras 

    • A.

      -39

    • B.

      -9

    • C.

      37

    • D.

      3

    Correct Answer
    A. -39
    Explanation
    The actual population growth can be calculated by subtracting the number of deaths and emigration from the sum of births and immigration. In this case, the sum of births and immigration is 25 + 12 = 37. Subtracting the number of deaths and emigration, which is 34 + 42 = 76, from 37 gives us a result of -39. This negative value indicates a decline in the population, as there are more deaths and emigration than births and immigration.

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  • 5. 

    In a small village in Mexico in 2009, 20 people were born and 13 people died. 5 people emigrated to the United States and a family of 3 moved immigrated from a neighboring town. What was the OVERALL change in population?

    • A.

      The population increased by 5

    • B.

      The population decreased by 5

    • C.

      The population decreased by 18

    • D.

      The population increased by 20

    Correct Answer
    A. The population increased by 5
    Explanation
    The overall change in population can be calculated by adding the number of births, immigration, and subtracting the number of deaths and emigration. In this case, there were 20 births, 3 immigrations, 13 deaths, and 5 emigrations. Therefore, the overall change in population is (20 + 3) - (13 + 5) = 5. Hence, the correct answer is that the population increased by 5.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 14, 2013
    Quiz Created by
    Rlabov
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