The Richter earthquake magnitude scale is based on the total amount of energy released by the earthquake.
a. true
b. false
Ans: a. true
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Acid rain effects include all of the following except
A. a reduction in the rate of chemical weathering observed in igneous rocks. B. fish kills or decimation of any aquatic organism's population because of inhibition of egg hatching in acidic waters. C. corrosion of building stone and marble statues and headstones. D. defoliation of plants or reduction in viability of plants because of their lowered ability to extract necessary nutrients from soils.
Which of the following is/are true?
A. Clay minerals make for very stable slopes because they bake and harden in the sun. B. Natural slopes, once formed, remain stable unless disturbed by human activities. C. An unstable slope can be stabilized by removing material to reduce the slope angle. D. All of the choices are correct.
Which of the following rocks is often nonfoliated?
a. slate b. phyllite c. marble d. gneiss
________ can produce intricately folded rocks
A) Differential stress B) Confining pressure C) Heat D) Hydrothermal fluids E) Cold surface water