Thesis Statement: Overpopulation is bad for us.
Mortality Rate
Mortality rate is a measure of the number of deaths per unit of time.
Time spent for looking in the internet: 3 mins.
Wikipedia,the free encyclopedia. Mortality Rate. Nov 12 2008.
http://en.wikipedia.org/wiki/Mortality_rate
Mortality rate is the probability of death in the first year of life.
Time spent in the library: 6 mins.
Lauren Bahr and Bernard Johnston. [Population]Library. Collier’s Encyclopedia. Nov 12 2008.