In an age-sex pyramid for the United States (2000), the biggest cohorts in males and females is due to
A) the sexual revolution of the 1960s/70s and the end of the Vietnam War.
B) large families between the two World Wars.
C) the baby boom.
D) the baby boom echo.
E) the baby boom bust.
Answer: C
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Compare the dimensions of three of the drumlins on the map, identified below by their peak elevation marked with an x. These drumlins are found from bottom center to upper right on the map. “Drumlin Height” refers to the relief of the drumlin, not its elevation. Estimate the “length” of the drumlins from north to south (a graphic map scale is found inside the front cover of the Lab Manual). Finally, note whether the north-facing or southfacing side of the drumlin has the steepest slope.
The question is based on Map T-12, the “Sodus, New York” quadrangle (scale 1:24,000; contour interval 10 feet) and Figure 47-3, a stereogram of this same area (43°09'55"N, 77°04'51"W). The map and stereogram show a number of drumlins, each with its long axis oriented approximately north-south.
States that sediment extends laterally in all directions until it thins and pinches out, or terminates,
against the edge of the depositional basin:a. principle of original horizontality b. principle of superposition c. principle of lateral continuity d. principle of cross-cutting relationships e. principle of uniformitarianism
A long lightning flash at some distance from the observer produces the thunder we hear as a rumble
Indicate whether the statement is true or false
Given a beach influenced by littoral drift, any interception of this drift will result in deposition of sand upstream of the interception and erosion of sand downstream of the interception.
Answer the following statement true (T) or false (F)