Due to their complexity, any given response to an environmental problem involves significant _____, and no response is likely to present the ultimate solution.
Fill in the blank(s) with the appropriate word(s).
Trade offs
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Displacement along the San Andreas fault during the Loma Prieta earthquake was:
a. dip-slip b. strike-slip c. a combination of a and b d. not accurately known
Extinctions that occur at a moderate rate and continuously open a limited number of opportunities for the origin of new species and new niches are known as ________ extinctions.
A. retrograde B. mass C. minimal D. background
The Principle of _____ states that in an undeformed sequence of sedimentary rocks, each bed is older than the one above and younger than the bed below.
A) Sequence Stratigraphy B) Vertical Continuity C) Original Horizontality D) Superposition
Most metamorphic rocks near the Earth's surface are derived from three common sedimentary rocks. Which three?
A) Conglomerate, graywacke, and arkose B) Shale, quartz sandstone, and limestone C) Basalt, travertine, and claystone D) Quartz sandstone, arkose, and siltstone