Population growth

Population growth

by Karina Frey

Multiple Choice

Based on this country's population pyramid, their population is

• Increasing

• Stable

• Decreasing

Multiple Choice

Is this country Developed or Developing?

• Developed

• Developing

Multiple Choice

The age group at the top of the pyramid is called:

• Children

• Workers

• Retirees

Multiple Choice

The age group that provides the most support for the other groups is:

• Children

• Workers

• Retirees

Multiple Choice

Which of these statements is true about this population?

• There is a high infant mortality rate.

• There are more males than females in the age cohort 20-24.

• There are no males over the age of 70.

• This population increasing rapidly

​Why has the human population exploded?

• ​We've gotten better at living in more places

• ​We have more efficient agriculture so we can feed more people

• ​Better sanitation, medicines and vaccines keep diseases under control

​The results ...

• ​Death rate has dropped significantly

• ​Birth rate has slowed, but it is not enough to counter the low death rate

Open Ended

What are some differences between developed and developing nations?

Open Ended

Give 2 examples of developed and two examples of developing nations

• ​The demographic transition model shows what happens to birth rates, death rates and overall population growth to a country as it becomes more industrialized

• ​This is a MODEL (based mostly on European data), not fact set in stone

Multiple Choice

Which of these does the DTM not include?

• Birth rate

• Population

• Migration

• Death rate

Multiple Select

In which stage/s would it be typical that there be no or little contraception?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

In which stage of the DTM is the population growth the most rapid?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

In which stage of the DTM is this population pyramid?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

In which stage of the DTM is this population pyramid?

• 1

• 2

• 3

• 4

Multiple Choice

In the demographic transition, which factor decreases first?

• birth rates
• death rates
• growth rates
• total population

Multiple Choice

Which describes the birth and death rate of Stage 2 of the DTM?

• The death rate is decreasing and birth rate remains high

• Both the death and birth rate are high

• The death rate is low but the birth rate is high

• Both the birth rate and death rate are decreasing

​3 rates that determine human population size

• ​Birth rate

• ​Death rate

• ​Migration rate​

​

• ​Calculate population change by subtracting those who leave (death, emigration) from those who arrive (births, immigration)

Open Ended

Write an equation to determine population size. Include:

B (births)

D (deaths)

I (immigration)

E (emigration)

​Rates

​We typically use RATES

• ​Birth Rate = number of births per 1000 per year

​

• ​Death Rate = number of deaths per 1000 per year

Multiple Choice

Population size can be estimated using the formula

• CBR + Immigration + CDR + Emigration

• CBR + Immigration – CDR – Emigration

• CBR + Immigration + CDR – Emigration

• CBR – Immigration – CDR – Emigration

• CBR – Immigration + CDR – Emigration

Multiple Choice

Which of the following leads to a decrease in birthrates among women?

• Higher Education

• High Infant Mortality Rate

• No Prenatal Care

• No contraceptives

Multiple Choice

At current growth rates, which country will probably be the most populous in the world after 2050?

• China

• Brazil

• India

• Indonesia

• United States

Multiple Choice

If a country has a death rate of 30 and a birth rate of 45 the natural rate of increase would show the population is ______.

• Increasing
• Decreasing
• Staying the same
• Fluctuating too much

​Replacement level fertility rate = the number of children a couple must have to replace themselves

• ​2.1 in developed nations

• ​2.5 in developing nations

Open Ended

Why are there different replacement fertility rates for developed and developing nations?

Multiple Choice

The replacement-level fertility rate is ____ for developed countries and ____ for developing countries.

• 1.6; 1.9

• 2.5; 2.0

• 2.0; 2.5

• 2.1; 2.5

• 1.8; 2.1

Multiple Choice

VOCAB: The average number of children a female member of a population has during her lifetime

• total fertility rate

• replacement fertility rate

• growth rate

• death rate

Multiple Choice

Which below is NOT a reason that total fertility rates have gone down?

• increased education for women

• increased access to family planning / contraceptions

• access to pensions / social security

• increased reliance on subsistence farming

Multiple Choice

The number of live births per 1000 people is called the...

• growth rate.
• infant rate.
• baby total.
• crude birth rate.

​Doubling Time

​Use the rule of 70 to calculate doubling time of a population

​

​** you need to memorize this formula ---->

Multiple Choice

Using the rule of 70, a population growing at 10% would double in

• 7 years

• 10 years

• 17 years

• 15 years

• not enough information to tell

Multiple Choice

Using the rule of 70, a population growing at 5% would double in

• 7 years

• 14 years

• 350 years

• 3.5 years

Multiple Choice

A country has a population that doubled in 120 years. Using the rule of 70, what is the growth rate?

• 0.58

• 120

• 1.71

• 8400

Multiple Choice

A metropolitan region of 100,000 people has 2000 births, 500 deaths, 200 emigrants, and 100 immigrants over a 1-year period. Its population growth rate is

• 1.2 percent.

• 1.4 percent

• 1.6 percent.

• 1.8 percent.

• 2.0 percent.

​Malthusian Theory ...

​The Malthusian Theory in three:

• Human population will grow exponentially

• Resources grow arithmetically 

• This means that resource availability has to be a check on population growth

  • If population grows beyond resource production, famine disease, and war will bring the population back in check