It is estimated that the ratio of the population of developing countries to developed countries by 2050 will be about ________
A) 1:2 B) 6:1 C) 1:6 D) 2:1 E) 1:4
Answer: B
Environmental & Atmospheric Sciences
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A) Groundwater B) Incised meander C) Cutbank D) Aquitard
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A) Clean Air Act. B) Clean Water Act. C) American Recovery and Reinvestment Act. D) ISTEA.
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Indicate whether the statement is true or false
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