Mudflows of volcanic ash are referred to as:
a. talus.
b. avalanches.
c. heavings.
d. solifluctions.
e. lahars.
E
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Which of the following factors makes it possible for condensation on hygroscopic nuclei to occur at relative humidities less than 100 percent?
A. curvature effect B. crystalline structure of hygroscopic nuclei C. solute effect D. electrical charge on hygroscopic nuclei
Briefly explain how magnetic reversals in oceanic crust and fossils in ocean sediments are used to
construct a magnetic time scale. What will be an ideal response?
How wide would an ocean basin be if it formed due to the breakup of a supercontinent 200 million years ago and had an oceanic ridge in the middle that spread at a rate of 2.5 centimeters per year (25 kilometers per million years)?
What will be an ideal response?
What is relief?
A. surface configuration of Earth B. synonymous with elevation or altitude C. difference between highest and lowest elevation D. general term for non-level topography E. fundamental shape of a landform