The most common mineral in Earth's crust is ________ and the second most common mineral is ________
A) quartz; feldspar
B) feldspar; quartz
C) silicate; carbonate
D) olivine; feldspar
B
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An extremely long ocean wave created by an underwater earthquake that may travel hundreds of kilometers per hour is a
A) rill. B) dune. C) moraine. D) tsunami.
What is dendrochronology?
"Scale" relates ________ to ________
A) Earth distance, Earth distance B) map distance, map distance C) map distance, Earth distance D) Earth distance, map distortion E) map distortion, map distance
The Antarctic Protection Act of 1990
A. establishes guidelines for mineral-resource development in Antarctica. B. sets the maximum allowable levels for Antarctic air and water pollution. C. protects the Antarctic flora and fauna. D. prohibits Antarctic mineral prospecting and development by United States citizens and companies.