The German Meteor expedition, which explored the South Atlantic, was the first to use what innovation in depth
profiling?
a. Deep-sea drilling
b. Remotely operated vehicle
c. Echo sounder
d. Nuclear submarine
e. Global Positioning System
c
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After a uranium fuel rod reaches the end of its fuel cycle (typically 3 years), most of its energy comes from the fissioning of plutonium because
A. fissionable Pu-239 is formed as the U-238 absorbs alpha particles from the fissioning U-235. B. fissionable Pu-239 is formed as the U-235 absorbs neutrons from the fissioning U-238. C. fissionable Pu-239 is formed as the U-235 absorbs alpha particles from the fissioning U-238. D. fissionable Pu-239 is formed as the U-238 absorbs neutrons from the fissioning U-235.
What is geopolitics?
What will be an ideal response?
Which of the following is true of most fatty acids found triglycerides?
A) they are branched B) they contain 10 to 20 carbon atoms C) they contain an odd number of carbon atoms D) none of the above
A continent has an oceanic trench offshore of its coast. Which of the following is probably NOT present along this side of the continent?
A. a mountain belt B. volcanoes C. earthquakes D. subduction of an oceanic plate E. melting along a mid-ocean ridge