Which of the following groups makes up about 30% of the world’s popula

Which of the following groups makes up about 30% of the world’s population?

a. Children
b. Elderly
c. Teenaged adolescents
d. Caucasians

ANS: A
According to the World Health Organization, in 2007, 30% of the world population consisted of children and 8% of the population were over age 60. The percentage of teenaged adolescents and Caucasians is not reported in the text.

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