What are the sources of the heat, pressure, and fluids that cause rocks to metamorphose? What will be an ideal response?
Heat for metamorphism comes from intrusive magmas, extrusive lava flows, or deep burial. Pressure is
either lithostatic (uniformly applied stress) or differential (stress unequally applied from different
directions). Fluids trapped in sedimentary rocks or emanating from intruding magmas can enhance
chemical changes and the formation of new minerals.
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What is an advantage of using coal as an energy resource?
A. Coal mining involves minimal land disturbance. B. Coal mining and burning is inexpensive when environmental costs are not included. C. Coal burning produces less CO2than other fossil fuels. D. Coal is clean-burning. E. Coal mining causes minimal damage to habitats.
A(n) ________ is a stream maintain an equilibrium between the processes of erosion and deposition and, therefore degradation and aggradation
A) graded stream B) oxbow C) anabranching river D) meandering stream
The accuracy of slope measures from a DEM can be influenced by
A. local topography B. the computing algorithm C. the DEM resolution D. all of these are correct E. both the computing algorithm and the DEM resolution
In a conditionally unstable atmosphere, the environmental lapse rate will be ____ the moist adiabatic rate and ____ the dry adiabatic rate
a. greater than; less than b. greater than; greater than c. less than; greater than d. less than; less than e. the same as; the same as