The warm temperatures of a heat burst (a very warm thunderstorm downdraft) are caused by
evaporative warming.
a. true
b. false
b
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Seismic gaps are:
a. nonseismic intervals between frequent earthquakes along a particular fault b. portions of seismograms that lie between the arrival of P and S waves c. segments of active faults that experience frequent earthquakes d. segments of active faults that have not produced earthquakes for a long period of time
Briefly discuss the movement of sand on a beach environment. Include those factors, both natural and human-induced, that affect sand movement
What will be an ideal response?
If the path of polar wandering recorded on two continents is not the same, then we can say that
A. the continents have always been widely separated. B. our radioactive dating techniques have been inaccurate. C. Earth's magnetic history has been very complex. D. at least one of the continents has moved.
An examination of the distribution of ethnicities in the United States reveals
A) ethnicities are not often clustered in urban areas. B) different ethnicities cluster in each U.S. region. C) ethnic neighborhoods contain a heterogeneous mix of ethnicities, even in cities that were once known for their patterns of segregation. D) segregation and exclusion are a thing of the past for nearly all U.S. ethnic groups. E) ethnic groups tend to cluster in urban areas and in different U.S. regions.