Demographers estimate the human population in 2050 to be between 7.8 and 10.8 billion - a range of three billion.Why is the estimated range so wide?
A) More-developed countries routinely inflate their estimates.
B) Projections are made by a variety of organizations.
C) Fertility rates are calculated with a standard formula by country.
D) Ranges include maximum and minimum estimated casualties of war.
E) Statistics regarding drought and famine are constantly shifting.
Correct Answer:
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