The fraction of nutrients responsible for the Gulf of Mexico hypoxic zone that are anthropogenic is:
A. 90 percent
B. 100 percent
C. 70 percent
D. 30 percent
E. 10 percent
Answer: C
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Landforms that are made of relatively easily weathered sedimentary rocks capped by nearly horizontal
more resistant rocks include a. mesas. b. ventifacts. c. playas. d. pediments.
Which of the following does not contribute to destruction from seismic vibrations?
A) Intensity and duration of vibrations B) Geologic material beneath the structure C) Building materials and practices D) Proximity to water sources
What are genetically modified organisms (GMO)?
A) modified in a controlled environment B) produced close to where consumed C) sourced without use of chemicals D) response to global food industry E) none of the above
Which of these regions is high because of a continental collision?
A) 1, Andes of South America
B) 2, East Africa Rift
C) 3, Tibet
D) None of these are correct.