The transportation of sediment away from its source is called ____
a. weathering
b. erosion
c. lithification
d. sedimentation
e. foliation
b
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Silicic lavas, which are relatively high in silica, tend to be more fluid than mafic magmas.
Answer the following statement true (T) or false (F)
Tropical cyclones produce the most intense low-pressure systems on earth. To develop and maintain this low pressure, what must happen aloft in this type of storm?
A) The storm must push the tropopause far into the stratosphere to maintain the low pressure. B) A strong jet stream flow must be present to maintain the inward flow. C) Rain must fall to force thunderstorms to collapse to keep the air circulation going. D) A strong divergent flow (outflow) aloft must keep up with, or exceed, the inflow near the surface.
Which of the following fossils fuels is the "cleanest" for the environment in the sense that it is most likely to have the lowest sulfur content and the smallest volume of solid ash residue?
A) Natural gas B) Anthracite coal C) Heavy, asphalitic crude oil D) Lignite
To explain fold and thrust belts, simultaneous normal faulting, and how once deep-seated metamorphic rocks rise to an upper level in a mountain belt, geologists use a model called
A. gravitational collapse and spreading B. faulting C. tectonism D. orogeny