The layered appearance of foliated metamorphic rocks is due to the
A. realignment of minerals so that they are perpendicular to compressive forces.
B. mechanics of weathering minerals.
C. laying down of minerals, layer upon layer.
D. recrystallization of minerals.
Answer: A
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Principal atmospheric lifting mechanism(s):
In clouds with tops warmer than -15 degrees Celsius (5 degrees Fahrenheit), the ____ can play a significant role in producing precipitation.?
a. ?solute effect b. ?condensation c. ?curvature effect d. ?evaporation e. ?collision-coalescence process
Of the main nutrients in the biosphere, the one that is fixed inside nodules in certain plant roots is ________
A) carbon B) nitrogen C) oxygen D) hydrogen E) calcium
Which of the following is not true of soil air?
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