Which of the following minerals are called sheet silicates?
a) amphiboles
b) feldspars
c) olivines
d) pyroxenes
e) micas (biotite, muscovite, etc.)
Ans: e) micas (biotite, muscovite, etc.)
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Which of the following did not happen to Earth's original rocks?
A) They formed the base rock for some of Earth's highest mountains. B) They were recycled in the rock cycle. C) They were consumed by erosion. D) They were consumed by plate tectonics.
All of the following would generally increase erosion except ________
A) deforestation B) growing cover crops C) overgrazing D) plowing and tilling
Which of the following climate types is associated with the midlatitude broadleaf and mixed forest biome?
A) marine west coast B) humid subtropical (warm summer) C) humid continental (cool summer) D) Mediterranean
What kind of geologic feature is shown in this photograph?
A. contact metamorphism B. desert varnish C. unconformity D. desert pavement E. None of these choices are correct.