While looking at a cliff, you observe that three visible layers of rocks are tilted about 30 degrees. There are four straight horizontal layers above the tilted layers
Which two principles suggest that the tilted layers are older than the horizontal layers?
A) the principle of inclusions and the principle of original horizontality
B) the principle of superposition and the principle of inclusions
C) the principle of cross-cutting relationships and the principle of superposition
D) the principle of original horizontality and the principle of superposition
Answer: D
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Indicate whether the statement is true or false.
On the accompanying figure, what type of feature is located in the area of number 4?
A. transform fault B. fracture zone C. mid-ocean ridge D. linear island chain
Which of the following would not result in the modification of the air mass?
A) A cA air mass moving across the Gulf of Alaska. B) A cP air mass remaining stationary over central Canada. C) A cP air mass moving across the Great Lakes. D) A cT air mass moving across the Gulf of Mexico. E) A mT air mass moving across Texas.
Relatively cooler magma in an erupting volcano is apparently the result of ________
A) the amount of water present B) depth of magma formation C) position of astronomical bodies D) surface salinity E) a high amount of silica present