Generally speaking, the average crustal concentration of one metal has what kind of relationship with the minimum concentration factor of this metal for profitable mining?
a. Not related
b. Positively related
c. Negatively related
d. The relationship changes among metals
Ans: c. Negatively related
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Sandstone is a detrital sedimentary rock mostly composed of particles measuring 1/16-2 mm in
size. Indicate whether the statement is true or false.
Where is density stratification the least pronounced?
a. Temperate latitudes b. Polar latitudes c. Tropical latitudes d. Areas where there is upwelling
Quantitative data may include
A. chemistry of water in a stream. B. specific temperature data. C. size measurements of sediments. D. age of a rock. E. All of these choices are correct.
Consider the location of New York City. In terms of crustal plates, New York City is ________
A) not on a plate B) on a convergent boundary C) on a divergent boundary D) not on a plate boundary E) on a transform boundary