What percentage of the world's population is at risk of zinc deficiency?
a. 5
b. 10
c. 15
d. 20
e. 25
Question 2
Which of the following describes a known long-term relationship among poverty and population growth?
a. As economic status improves, population growth rises.
b. As economic status improves, population growth diminishes.
c. Lack of natural resources, not poverty, is the most important contributor to overpopulation.
d. Extreme poverty tends to greatly suppress population growth.
e. Economic status and population growth are unrelated in the developing world.
Epidemiologists look for the causes of disease, such as toxic waste and industrial pollution, at the
World Population Growth, Past 10,000 years
Effect of antidiuretic hormone deficiency.
Links to the World Economy
The Great Spike in World Population Growth
Predicted Proportions in a Population