What environmental challenges are associated with extracting coal?
What will be an ideal response?
Answer: Surface mining is very destructive to the landscape, even with costly reclamation plans. Underground mining, though not as destructive as mining at the surface, can still be damaging to the environment, particularly through gas explosions and mine drainage.
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On December 21, the vertical rays of the sun strike the:
a. Arctic Circle. b. Tropic of Capricorn. c. Tropic of Cancer. d. Antarctic Circle. e. Equator.
Figure 11.3 shows geostrophic wind flows. Write the name of the correct hemisphere under each figure. Pick one arrow from each example and draw your own arrows to indicate the pressure-gradient force in red and the Coriolis force in blue for that figure, or colors as indicated by your professor, as shown in Figure 11.3a. Label the pressure-gradient force arrow with PGF and the Coriolis force arrow with CF.
What will be an ideal response?
Which of the following is/are subcycles within the geologic cycle?
A) hydrologic cycle only B) the rock cycle only C) the tectonic cycle only D) the rock cycle, tectonic cycle, and hydrologic cycle E) the rock cycle and the tectonic cycle
What is meant by the expression “slip inversion”?
What will be an ideal response?