What rock evidence leads geologists to conclude that much of Pangaea was an arid or semi-arid environment? What will be an ideal response?
The extensive Permian red beds and evaporites found in western North America, central
Europe, and parts of Russia provide evidence for the dry conditions that existed in the interior
part of the Pangaea supercontinent. Arid conditions were caused because mountain ranges
blocked much of the moist, subtropical easterly winds, creating rain shadows.
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Chile's economy is strong, and though it relies heavily on ________ exports to China, it has diversified its exports
A) automobile B) copper C) oil D) agricultural
Extensional normal faults are common in the Himalaya Mountains. Indicate whether the statement is true or false
Which of the following statements best elaborates on the key idea that “technology is not imperative”?
a) Technology and the science behind it are often presented to us as final, inevitable, unchangeable structures. b) We do have control over technology even as it has control over us. c) Human decisions are behind which technologies to build and scientific questions to ask, and which not. d) All of the above.
Which one of the following statements is correct?
a.)P waves travel through solids; S waves do not. b.)S waves travel through solids and P waves travel through liquids. c.)P and S waves travel through liquids, but S waves do not travel through solids. d.)P and S waves travel through liquids, but P waves do not travel through solids.