Which of the following describes the mineral processing technique whereby a chemical solution percolates through crushed ore and liberates the desired elements?
A. ionization
B. hydration
C. smelting
D. dredging
E. leaching
Answer: E
You might also like to view...
RNA polymerase I (pol I) catalyzes the formation of which type of RNA?
A) mRNA B) rRNA C) snRNA D) tRNA
Which of the following is not true of prairies?
a. Winds blow almost continuously. b. Evaporation is rapid. c. Fires in summer and fall are common. d. Prairies are typical of coastal regions of continents. e. Tree growth is hindered by fires and wind.
Why have fewer middle class retirees chosen the Coastal South as a retirement destination in recent decades?
A) Hurricanes have increased due to global climate change, increasing the danger to many residents with limited mobility. B) Crime rates have risen, so that many retirees no longer feel safe. C) Land prices in some parts of the region have risen so much that many retirees can no longer afford to buy a home near the coast. D) The standard of living and recreation options in other parts of the country have risen to a point where the Coastal South is not as desirable.
Of the main Köppen climate zones, ________ is the only one that does not occur in the Southern Hemisphere
A) A B) B C) C D) D E) E