Portugal and ________ are the leading places of origin for Brazil's population
A) North Africa
B) West Africa
C) East Africa
D) Central Africa
E) South Africa
Answer: B
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Diffused light is caused by ________
A) scattering of solar radiation by water molecules B) scattering of solar radiation by dust particles and gas molecules C) solar radiation striking an irregular surface and being partially absorbed D) solar radiation striking surface water at a low angle E) none of the above
In the future, coastal cities will likely be faced with
a. severe water shortages when the mountaintop glaciers that feed the watersheds coming into these cities are reduced by global warming b. flooding as sea levels rise secondary to global warming c. higher populations as people move from arid areas because of droughts d. no major changes in water availability or population size e. changes in water availability, but no changes in population size
Which of the following countries has the world's largest supply of low-cost labor and the world's largest market for many consumer products?
A) Thailand B) Russia C) China D) India E) United States
Genes are located on molecules called ________
A) deoxyribonucleic acid B) nuclei C) proteins D) ribonucleic acids