An area is found to have a high rate of erosion. What kind of sediment is likely to be in the
surrounding waters?
a. Well-sorted sediments
b. Poorly-sorted sediments
c. One size of sediment
d. Course grained sediments
ANS: B
The erosion would produce many sizes of sediments. Poorly sorted sediments form in environments
where energy fluctuates especially due to wave and current actions. Information can be found in the
section Sediments May Be Classified by Particle Size.
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Which type of drainage pattern is shown in Figure 24.4? Briefly describe the structural conditions that have created this pattern.
Figure 24.4
The Southeast Asian country that was under Pol Pot in the 1970's is
A. Laos B. Vietnam C. Thailand D. Cambodia
Why are rocks rich in feldspar and silica called felsic?
A) Felsic is the Latin word that means rich in feldspar and silica. B) Felsic is the opposite of mafic. C) Felsic comes from feldspar and silica. D) Felsic is the opposite of ultramafic.
The storm surge of a hurricane is
A. the area of high pressure within the storm B. the dome of high water in the center of the hurricane C. the tallest waves D. the highest winds