A(n) ________ is a contact in which an erosional surface on a pluton or metamorphic rock has been covered by sedimentary (or volcanic) rock.
A. boundary layer
B. angular unconformity
C. basal conglomerate
D. nonconformity
E. disconformity
Answer: D
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What do the two stars near the center of this block represent?
A) They represent the location of the earthquake.
B) The star at depth is the place where the earthquake is generated.
C) The star at depth is the hypocenter.
D) The star on the surface is the epicenter.
E) All of these are correct.
Where on the Population Density map of Sub-Saharan Africa would you find the highest densities of people in this region?
A. Western Africa, including Nigeria B. Southern Africa, from Botswana to Angola C. Ethiopia and Somalia in Eastern Africa D. The Northern African boundary countries along the Sahara Desert
When the frequency of light matches the natural frequency of molecules in a material, light is
A) absorbed. B) transmitted. C) reflected. D) none of the above
Fragmented states have other state territories within them
Indicate whether the statement is true or false.