3.1 Population Growth Quiz
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Which of the following is used to calculate the change in population size?
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(Births + Immigration) + (Deaths + Emigration)
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(Births + Immigration) - (Deaths + Emigration)
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(Births - Immigration) - (Deaths - Emigration)
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Births - Deaths + Population
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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.
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- 2.
A population will continue to grow if births + immigrants is ________________ deaths + emigration.
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Less than
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More than
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Equal to
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Irrelevant to
Correct Answer
A. More thanExplanation
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.Rate this question:
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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.
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Increasing
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Decreasing
Correct Answer
A. DecreasingExplanation
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.Rate this question:
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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
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-39
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-9
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37
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3
Correct Answer
A. -39Explanation
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.Rate this question:
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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?
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The population increased by 5
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The population decreased by 5
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The population decreased by 18
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The population increased by 20
Correct Answer
A. The population increased by 5Explanation
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.Rate this question:
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Current Version
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Mar 20, 2023Quiz Edited by
ProProfs Editorial Team -
Feb 14, 2013Quiz Created by
Rlabov
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