Population

Question 1

Give two examples of the kinds of factors that can help to change a country’s population. Explain your answer in at least two to three sentences.

Revolt · Accepted Answer

Two factors that can change a country’s population are its birth rate and migration. A higher birth rate adds more people to the population. Immigration can increase the population, while emigration can decrease it.

Question 2

What does it mean to measure a migration rate? How do migration rates affect populations? Explain your answer in at least two or three sentences.

Revolt · Accepted Answer

A migration rate measures how many people move into or out of a country during a certain period, often compared with the size of its population. Immigration increases the population because people arrive, while emigration decreases it because people leave. The balance between these movements can make a population grow or shrink.

Question 3

Which of the following phrases best defines the term population density? A. the total number of births each year B. the number of people relative to the size of the area they live in C. the number of people living in rural areas D. the total number of people that live in an area Please select the best answer from the choices provided

Revolt · Accepted Answer

B

Question 4

Analyze the image below and answer the question that follows. Image courtesy of the US Census Bureau The population pyramid above shows the population of Belize. Which of the following statements is false? A. The number of men and women is about the same.B. There are more young people than old people.C. There is a large number of young people.D. There are more old people than young people. Please select the best answer from the choices provided

Revolt · Accepted Answer

D

Question 5

Analyze the graph below and answer the question that follows. Image by NASA Analyze the graph above. How is the world’s population changing, and what is its population today? Give your response in at least two or three sentences.

Revolt · Accepted Answer

The world’s population is increasing, and it has been growing more quickly over time. By 2010, the population was nearly 7 billion people.

Question 6

In 2011, the world’s population approached __________. A. ten billion B. seven billion C. two billion D. one billion Please select the best answer from the choices provided

Revolt · Accepted Answer

B

Question 7

Analyze the image below and answer the question that follows.Image by nibucunu All four of the areas in the image above are the same size, but there are different numbers of people living in each one. Which area has the lowest population density? A. Area 1B. Area 2C. Area 3D. Area 4 Please select the best answer from the choices provided

Revolt · Accepted Answer

C

Question 8

Analyze the map below and answer the question that follows.Image courtesy of NASA Based on the map above, which world regions are the most densely populated? A. North America and South AmericaB. East Asia and South AsiaC. Africa and AustraliaD. Australia and South America Please select the best answer from the choices provided

Revolt · Accepted Answer

B

Question 9

What does it mean to say that a country’s birth rate is increasing? How would this change a country’s population? Explain your answer in at least two or three sentences.

Revolt · Accepted Answer

A country’s birth rate is increasing when more babies are being born compared with an earlier period, often relative to the population’s size. Births add people to the country’s population. If other factors do not offset the increase, the population will grow over time.

Question 10

Analyze the chart below and answer the question that follows. Data courtesy of the UN According to the chart above, what is happening to the world’s urban and rural populations? Explain what the chart helps us to understand. Your response should use at least two to three sentences.

Revolt · Accepted Answer

The chart shows the urban share of the world’s population increasing from about 28% in 1950 to roughly 68% by 2050, while the rural share decreases from about 72% to around 32%. The two shares become approximately equal around 2010. The chart helps us understand the global shift toward people living in urban areas rather than rural areas.

Population Answers

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