Which two observations can be made in relation to population growth over centuries?
a.The world population began declining after World War I and World War II.
b.In the twentieth century alone, the world population grew by more than 5 billion people.
c.Population grew slowly until the eighteenth century because death rates were higher.
d.Poverty, employment, and living standards are not affected by population growth.

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B. In the twentieth century alone, the world population grew by more than 5 billion people.

C. Population grew slowly until the eighteenth century because death rates were higher.

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The world growth of human population has been growing since the 18th century due to the availability of medical aid and good living standards.

  • Also due to the decline of the death rates population in 1800 was about 1 billion. Hence the option C is correct.
  • The population grew slowly until the eighteenth century because death rates were higher.

Learn more about the observations that can be made in relation to the population.

brainly.com/question/20028300.