What surface mining procedure would most likely be used to mine coal on hilly terrain?
A. open-pit mining
B. contour strip mining
C. area strip mining
D. strip mining
E. room and pillar mining
Answer: B
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Which of the following best explains why some volcanoes erupt so violently?
A. combustion as nitrogen gas compounds react with atmospheric oxygen B. rapid temperature drop as magma reaches the surface environment C. rapid decompression of dissolved gases D. cooling effect of seawater beneath island arc volcanoes E. all of the answers listed here
Describe what a true blizzard is and how it differs from a ground blizzard
Which of the following is the definition of an essential fatty acid?
A) any fatty acid that the body needs B) any fatty acid that contains more than 14 carbon atoms C) any fatty acid that the body needs, but which it cannot synthesize D) any fatty acid that the body needs and which it must synthesize
Which of the following is meant by “double politics”?
a. Grassroots organizing and top-down authority b. Collective and individual action c. Conflict and consensus d. Conceptions and connections