Given that gneiss is commonly composed of quartz, feldspar, and mica, what igneous rock is a possible protolith for gneiss?
A. Schist
B. Basalt
C. Granite
D. Gabbro
E. Shale
Answer: C
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Iron atoms, Fe, are better reducing agents than copper ions, Cu2+. In which direction do electrons flow when an iron nail is submerged in a solution of Cu2+ ions?
A) Electrons cannot flow from the nail to the Cu2+ ions because there is no conductor between the two. B) The electrons flow from the submerged nail to the copper ions in solution. C) The electrons flow from the positive charge on the nail to the negative charge on the nail. D) The electrons flow from the copper ions in solution to the submerged nail.
In which Early Paleozoic continent was most of present-day North America located?
________________. Fill in the blank(s) with the appropriate word(s).
This variable atmospheric component can exist in all three states of matter (solid, liquid, and gas) at the temperatures and pressures that normally exist on Earth
A) water B) ozone C) nitrogen D) methane E) oxygen
Across much of the United States, intense winter storms develop and travel ____________________, frequently dumping heavy precipitation as they go
Fill in the blank with correct word.