
Population is...
the number of people
the number of mountains
the number of cities
Population growth is mostly about...
birth rate vs. death rate
birth rate vs. migration
migration vs. death rate
"Natural increase" happens when...
The birth rate is lower than the death rate
The birth rate and the death rate are the same
The birth rate is higher than the death rate
Throughout history the world's population...
has gone up
has gone down
has stayed the same
A disease is...
a big storm
sickness/illness which affects people's health
Examples of diseases which made the population go down are:
runny nose and plague
headaches and HIV
bubonic plague and HIV/AIDS
Where is HIV/AIDs causing population decrease?
The Middle Ages
Southern Africa
What are the three reasons population can decrease?
hurricanes, family planning, people hating babies
family planning, people hating babies, war
disease, war, family planning