The construction of a dam across a river is likely to cause ________ upstream and ________ downstream
A) erosion; aggradation
B) erosion; erosion
C) aggradation; erosion
D) aggradation; aggradation
C
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The surface distance measure is calculated from a(n):
A. elevation raster B. path raster C. cost raster D. allocation raster
A reddish color in a sedimentary rock usually indicates:
a. oxidizing conditions b. reducing conditions c. an abundance of organic matter d. a lack of organic matter
Some of the first experiments in cloud seeding were conducted by Vincent Schaefer and Irving Langmuir during the late 1940s. To seed a cloud, they dropped crushed pellets of ____ from a plane.?
a. ?silver iodide b. ?silver iodine c. ?lead iodide d. ?cupric sulfide e. ?dry ice
Compared to less resistant rocks, rocks that are more resistant to weathering tend to form:
a. low slope angles. b. valleys. c. cliffs. d. regolith. e. talus.