Which of the following lists of metamorphic rocks places the rocks in order from lowest metamorphic grade to highest?
A) Gneiss, slate, phyllite, schist
B) Anthracite, hornfels, quartzite, marble
C) Slate, phyllite, schist, gneiss
D) Ironstone, sandstone, slate, gneiss
Answer: C
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A. of different wavelengths. B. of different frequencies. C. out of step. D. of different amplitudes.
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Indicate whether the statement is true or false
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A. Preservation of wildlife is needed for human survival B. All living things have a fundamental right to exist and pursue their own interests C. The biosphere is a central resource for humans D. Humans must manage resources for maximum productivity E. All living things have value for humans
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A. many analytical instruments are incapable of detecting substances present at very low, but nonzero, concentrations. B. treatment costs escalate exponentially as pure water is approached. C. no water-treatment process is completely efficient at removing pollutants. D. All of the choices are correct.