Examlex
The major problem in AIDS prevention is to figure out how to persuade people who are sexually active to protect themselves and their sex partners.
Principle Of Population
A theory suggesting that population growth is potentially exponential while the growth of the food supply or other resources is linear.
Subsistence
The minimum level of resources (food, shelter, clothing) that is required for individuals to survive.
Thomas Malthus
An English scholar and demographer known for his theory that population growth will always tend to outrun the food supply and that betterment of humankind is impossible without strict limits on reproduction.
Total Fertility Rate
An estimate of the average number of children a woman will have over her lifetime, based on current birth rates.
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