Unit 6

What is another word for

exponential growth?


Geometric Growth


m (E)

 man is a function of earth

y= f(x)


y is a function of x


Relative Growth Rate indicates…


the % increase or decrease in

y or a population

What is the equation for

doubling time?


Dt = 70/ annual percentage growth

When a population exceeds the carrying capacity, the death rate _____

the birth rate



When a population exceeds the carrying capacity of its environment, its called an __________


Pattern of overshoot or dieback

is also called __________

or _______ __________



Malthusian Growth


What did Malthus believe?


Human population increases until resources are exhausted


Why do we overshoot the carrying capacity?
We believe we have unlimited resources

What is the net gain of humans per second?


2 seconds

What is the social justice concern about human population?
Shortage is due to greed, waste, and oppression.  It’s the distribution of wealth and power rather than population size
What are four factors that determine population growth?




What does population growth;

lead to?

Crime, starvation, misery, and war
What does Malthus believe?
population growth will;

exceed the carrying capacity

What does Marx believe?
Population growth is a symptom resulting from social injustice
production of new individuals by birth
Physical ability to reproduce
# of offspring produced by 1 woman
Crude birth rate
# of births per year per 1000 people
Why is the crude birth rate crude?
It assumes all women are in their productive age
What is the world growth rate?
What is the dependency ratio?
Number of non working compared to working individuals in a population