A localized zone of melting (commonly thought to be stationary) below the lithosphere is called a(n) ____
a. orogeny
b. hot spot
c. lava flow
d. chert
e. graywacke
b
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Interest in nuclear power as a major world energy source
A. Gradually built to a peak in the 1980s and 1990s B. Was strong in the 1950s but has since faded C. Reached a peak of interest due to the Gulf War D. Is increasing because of its low cost E. Has been consistently low since it was invented
Water pressure is generally greater in a confined aquifer than in an unconfined aquifer
Indicate whether the statement is true or false
Alluvium refers to stream deposits, mainly sand and gravel
Indicate whether the statement is true or false
Shoreline retreat is a natural process that humans have made worse in recent years. Which of the following is NOT a major factor in the rate at which shorelines move inland?
A. coastal development B. sea-level rise C. frequency of storms D. disruptions in sediment supply