Explain the three stages of the rock cycle and give two examples of each rock stage.
What will be an ideal response?
Magma cools into igneous rock, such as granite and lava. Rocks that undergo erosion and weathering, and then compact together, such as sandstone and shale, form sedimentary rock. Rocks that undergo chemical changes, such as from high heat or extreme pressure, are called metamorphic rock. Examples are slate and marble.
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Which of the following statements regarding migration and settlement of African Americans in the United States is most accurate?
A) In 1900, about half of African Americans lived in the South; today that figure remains the same. B) In 1900, more than 70% of African Americans lived in the South; today about one-third of them live there. C) In 1900, more than 90% of African Americans lived in the South; today a little more than half of them live there. D) In 1900, about half of African Americans lived in the South; today about 90% of them live there. E) In 1900, more than 90% of African Americans lived in the South; today that figure remains the same.
The gorge wall on the outside of some meander turns is noticeably steeper than the gorge walls on the inside of the meander turn. For example, see “Cottonwood Bottom” and the meander to the west of “Spring Canyon Point.” What might explain this? (Hint: Consider the processes of erosion associated with both meandering and entrenchment; before entrenchment, was the stream course directly above its current location?)
The following questions are based on Map T-7, the “Canyonlands National Park, Utah” topographic map (scale 1:62,500; contour interval 80 feet), Figures 32-3 and 42-2, stereograms of this region, and Figure 42-1a, an oblique aerial photograph of this area. The map, stereograms, and photograph show the deeply entrenched meanders of the Green River north of Canyonlands National Park, Utah (38°33'40"N, 110°03'16"W). What will be an ideal response?
Which of the following European countries is predominantly Muslim?
A) Romania B) Poland C) Albania D) Bulgaria E) Hungary
A sample of carbon dioxide occupies 22.4 L at STP. Which of the following statements apply to the sample?
A) The sample contains 6.02 x 10^23 atoms. B) The sample contains 6.02 x 10^23 atoms of oxygen. C) The sample contains 6.02 x 10^23 molecules. D) None of the above is correct.