The greater thickness of what kind of rocks causes the continents to have higher surface elevations than the oceanic crust?
A) sial
B) metamorphic
C) igneous
D) sima
Answer: A
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A) intentionally reducing the varieties of fruits and vegetables found in the grocery store. B) replacing traditional and native species of plants with crops for export. C) overharvesting non-traditional crops like hemp and seaweed from public areas. D) exploiting indigenous knowledge of medicinal plants for commercial purposes.
The seismic-reflection profile can be used in the modern search for oil, because it helps to construct an image of the configuration of underground rock layers.
a. true b. false
Continental locations attain their maximum temperature later in the summer than do marine locations, due to the differential rates at which land and water are heated
Indicate whether the statement is true or false
The Gulf Coast lacks barrier islands
Indicate whether the statement is true or false