What river has been a major supplier of commercial energy for decades in the region of southern Africa
A) Nile
B) Niger
C) Congo
D) Limpopo
E) Zambezi
E) Zambezi
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Why is methane hydrate not harvested for energy use?
A) It is costly to mine and liquefy the sediments. B) It is dangerous to mine due to methane's combustibility. C) The methane disappears as it is brought to the surface. D) All of these choices.
Which of these is most important for splitting the Sun's light into its separate colors?
A) diffraction B) interference C) internal reflection D) reflection E) refraction
The seasonal temperature range in the deep ocean is usually ________
A) between ?2° and 32°C B) between 0° and 15°C C) between 2° and 8°C D) between 8° and 25°C E) negligible
Geographic information system technology is a direct result of advances in all EXCEPT ________
A) surveying B) computer cartography C) spatial statistics D) remote sensing E) cartographic theory