Use the map-view diagram of a group of tectonic plates to answer the question. Note: Not all features are shown for all boundaries.
Which of the cross sectional diagrams shown below best illustrates the plate boundaries across the line A-B?
A. Diagram a
B. Diagram b
C. Diagram c
D. Diagram d
Answer: D
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The unique preservation of soft-bodied fauna in the Burgess Shale occurred because of all of the
following except a. animals and plants were carried by turbidity flows to aerobic deep-sea conditions b. animals and plants were transported to anaerobic conditions c. bacteria weren’t able to destroy organisms at the burial site d. the organisms were compressed and compacted e. none of the above
Glaciers form because of the accumulation of large amounts of ice and snow. Which of the following provides the most water needed to create glaciers?
A) Groundwater B) Geysers C) Oceans D) Streams
What role do receptor sites play in drug activity?
A. The receptor site is the location that a drug binds to, altering the function of a biomolecule. B. The receptor site removes a drug from the blood stream, which limits negative side effects C. The receptor site is the same as the active site in an enzyme. D. The receptor site is unrelated to drug activity. E. none of the above
What is the main problem facing Ogallala aquifer?
a) overpumping may cause southern parts of the aquifer to go dry in the next 100 years b) it has become contaminated with radioactive waste from the Chernobyl accident c) precipitation is heavier to the east, causing tilting of the entire formation d) leakage from chemical processing plants are polluting the entire aquifer e) the groundwater is becoming more salty from water from the pacific Ocean