Section 3

Human Population Growth

• About 10,000 to 12,000 years ago, the development of agriculture increased the growth rate of the human population.

• Around 1650, improvements in hygiene, diet, and economic conditions further accelerated population growth.

• After World War II, the human population grew at the fastest rate in history, largely because of better sanitation and medical care in poorer countries.

• Today, developing countries have faster human population growth and lower standards of living than developed countries do.

Vocabulary hunter-gatherer lifestyle (p.390)

agricultural revolution (p. 390)

developed country (p. 391) developing country (p. 391)

demographic transition (p. 392)

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