A continental craton is best described as
A) the inactive remains of ancient tectonic activity.
B) the product of active folding and faulting.
C) the surface accumulation of molten rock.
D) a landform undergoing constant tectonic activity.
A
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Which of the following is a natural soil buffer that is abundant in the midwestern United States and helps to reduce the amount of acidification of lakes in that region?
A) Granite B) Limestone C) Sand and gravel D) Mosses and algae in the soil
The isobars are straight lines oriented from north to south, with low pressure to the east. The pressure gradient force is oriented from
A) east to west B) north to south C) south to north D) southwest to northeast E) west to east
Which of the following is NOT an example of a hydrogenous sediment?
A. Ooliths B. Phosphorites C. Manganese nodules D. Salts E. Tektites
Which of the following is a secondary air pollutant?
A) mercury B) carbon monoxide C) chlorofluorocarbons D) sulfur dioxide E) ozone