LESSON TWO
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
B.
Gravel appears on black and white photo as dark-grey to light grey (page 19, fig
2-4).
2.
A.
Sulfur is extracted by drilling (page 20, fig 2-5).
3.
B.
Shaft mining is used in Figure 2-33 (page 27, fig 2-14).
4.
D.
Open pit mining is used in Figure 2-34 (pages 23/24/25, para 3b/fig 2-9/fig 2-
10).
5.
C.
Copper is extracted in pit mining similar to the pit shown in Figure 2-34 (pages
20/25, fig 2-5/para 3b/fig 2-10).
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