Which of the following is NOT one of the explanations proposed in the text for the dramatic increase in life expectancy in the developed countries during the twentieth century?
(a) improved nutrition
(b) improved sanitation
(c) increased use of contraceptives
(d) economic development
Question 2
In some states, child support awards are based on the parent's ________, or the income before federal, state, and local income taxes are deducted.
A) net income
B) net adjusted income
C) gross income
D) profits
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