AP Environmental Science : The Human Population

Study concepts, example questions & explanations for AP Environmental Science

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Example Questions

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Example Question #1 : The Human Population

Which of the following is FALSE regarding urbanization?

Possible Answers:

population growth rarely outstrips the growth of infrastructure

urban areas tend to be warmer than surrounding natural areas

urban sprawl is destroying natural habitat

people's impact on the land is more pronounced in cities

people who live in urban areas consume less resources per capita

Correct answer:

population growth rarely outstrips the growth of infrastructure

Explanation:

Often, the growth of cities is too fast for the construction of adequate infrastructure. This results in transportation problems, including traffic gridlock and longer commuting times. The other answers are true regarding urbanization. Cities have a number of environmental drawbacks and benefits.

Example Question #2 : The Human Population

Which of the following countries has a declining population?

Possible Answers:

Ukraine

United States

Nigeria

Philippines

India

Correct answer:

Ukraine

Explanation:

Ukraine, like many former Soviet Bloc countries, has a declining population due to political unrest. Nigeria, the Philippines, the United States and India all have increasing populations.

Example Question #2 : The Human Population

In Stage One of a demographic transition, a population:

Possible Answers:

a low birthrate, a high death rate, and a declining population

a high birthrate, a low death rate, and a growing population

has a high birthrate, a high death rate, and a stable population

has a high birthrate, a high death rate, and a growing population

a low birthrate, a low death rate, and a stable population

Correct answer:

has a high birthrate, a high death rate, and a stable population

Explanation:

In the first stage of a demographic transition, a population has a high birthrate, a high death rate, and a stable population. Technological development is low, and populations are controlled mainly by famine and disease.

Example Question #4 : The Human Population

Which of the following is the term that is best defined as the number of children a couple must have to replace themselves in a given population?

Possible Answers:

Zero population growth number

Replacement level fertility

Total fertility rate

Demographic transition

Correct answer:

Replacement level fertility

Explanation:

Replacement level fertility is the number of children required by a couple to replace them. Currently, in the United States, this number is just above two. This number accounts for infant mortality and varies by region.

Example Question #5 : The Human Population

How has the CITES Treaty (Convention on International Trade in Endangered Species of Wild Fauna and Flora) been helpful in protecting endangered animals and plants?

Possible Answers:

It prevents the hunting of endangered marine life.

It specifies prices for endangered plant and animal products and byproducts.

It funds projects for breeding endangered plants and animals.

It lists those species that can be hunted, traded, and used commercially.

It lists those species and products whose international trade is controlled.

Correct answer:

It lists those species and products whose international trade is controlled.

Explanation:

The CITES treaty is the Convention on International Trade in Endangered Species of Wild Fauna and Flora, and entered into force in July 1975. The treaty's aim is to ensure that international trade in wild animals and plants does not threaten the survival of such endangered species, listed in varying degrees of protection and applying to more than 35,000 species. Thus it monitors international trade as it pertains to all manner of protected wildlife. 

Example Question #6 : The Human Population

A certain country has an initial population of 52,800 people. In 2015, there were 870 births, 517 deaths, 1,700 immigrants, and 1,300 emigrants. What is the population growth rate for 2015?

Possible Answers:

Correct answer:

Explanation:

The population growth rate is a measure of population change over a given time.

The first step to calculate this rate is to add up the number of people arriving in the country (through births and immigration) and, separately, add the number of people leaving the country (through death or emigration). Then we subtract those leaving the country from those entering the country to obtain a value for the change in population.  

After calculating the change in population, we can calculate the population growth rate.  Don’t forget to multiply the ratio between change in population and initial population by 100 to convert from decimal into percent. 

Example Question #7 : The Human Population

A town of 20,000 people experienced a birth rate of 25 per 1,000 per year and a death rate of 7 per 1,000. There were 600 immigrants into the town and 200 people emigrated from the town.  Using these values, calculate the population size for the following year.

Possible Answers:

Correct answer:

Explanation:

To calculate the city population for the following year, we take the initial population (20,000 people), add the annual rate of natural population change, add the number of immigrants and subtract the number of emigrants.

Example Question #8 : The Human Population

Exponential population growth is a major issue that threatens the stability of life on Earth. Which of the following is not a factor used to measure human population growth for a given country?

Possible Answers:

Death rate

Birth rate

Emigration rate

Immigration rate

Gross domestic product (GDP)

Correct answer:

Gross domestic product (GDP)

Explanation:

The correct response is GDP. All the other factors have major impacts on population growth. GDP has cultural implications for population growth; however, it is not a direct relationship.

Example Question #9 : The Human Population

The population growth for a country is 4% every 5 years, what is the approximate doubling time of this population?

Possible Answers:

73 years

59 years

25 years

88 years

Correct answer:

88 years

Explanation:

The formula for doubling time is: 

Since the population grows by 4% every 5 years, we must divide these two numbers to find the annual population growth. 

Thus:

So, using this number in our equation, 

Our answer rounds closest to 88 years. 

Example Question #10 : The Human Population

Which of the following is not associated with a Deep Ecology Worldview?

Possible Answers:

The environment is more important than economic growth

Environmental deterioration is a concern only if it impacts humans

The human population should be curbed if it impacts the environment

Humans are no more important than other species

All life has intrinsic value

Correct answer:

Environmental deterioration is a concern only if it impacts humans

Explanation:

There are two worldview extremes, the Deep Ecology and the Western worldview. Most people’s worldviews lie somewhere in between these two extremes. The Deep Ecology Worldview considers humans as no more important than other species and believes that all life has intrinsic value. The health of the environment is of the highest priority and humans should make sacrifices to protect it.

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