Which of these minerals could be used to make glass windows?
A. gypsum
B. hematite
C. quartz
D. clay minerals
E. calcite
Answer: C
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How can different layers of rock be discerned from the aerial photographs?
The question is based on color Maps T-20a and T-20b (in the back of the Lab Manual) and Figure 32-3, a black-and-white stereogram, showing the entrenched meanders of the Green River near Canyonlands National Park, Utah. A larger portion of this region is shown in color Map T-7 in the back of the Lab Manual. What will be an ideal response?
Today, no country has a death rate in excess of 21 per 1000.
a. true b. false
Which factor must increase in order for a river to pick up larger particles?
A) velocity B) viscosity C) shear stress D) water depth
Generally speaking, the most dangerous earthquakes tend to be
A. large magnitude and at great depth. B. small magnitude and at shallow depth. C. large magnitude and at shallow depth. D. small magnitude and at great depth.