The two techniques that are most commonly used to mine coal are ____________________ and
____________________. Fill in the blank(s) with the appropriate word(s).
underground mining, open pit mining
underground mining, surface mining
surface mining, underground mining
open pit mining, underground mining
underground mining; mountaintop removal mining
mountaintop removal mining; underground mining
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The rainshadow on the mountain in the diagram would be in the area marked
A. From A to B B. From C to D C. At A and at D D. At A and at B E. From B to C
Name two features defined by the principle of cross-cutting relationships
A) convergent tectonic plates and faults B) faults and dikes C) dikes and sills D) convergent tectonic plates and sills
Which of the following is generally called "good cholesterol?"
A) chylomicrons B) HDL C) LDL D) VLDL
What geologic process is responsible for warming the water at nonvolcanic locations such as Hot Springs National Park, Arkansas, and Warm Springs, Georgia?
A) Radioactive minerals near the surface B) Friction from moving rocks C) Abnormal volumes of rain D) Normal geothermal gradient as groundwater circulates at depth