Of central importance in a tug-of-way match is
A. increased tension in the rope.
B. friction between the feet and ground.
C. one's grip on the rope.
D. staying power.
Answer: B
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Caliche is a ____
A)layer of silica cement within a pedalfer B)layer of precipitated calcium carbonate in horizon B C)layer of rock between soil layers C and D D)deposit formed in alkali soils E)light colored layer of unstable minerals
________ are structures built to protect shorelines and harbors from wave attack and may be attached or detached from the shoreline.
A. Breakwaters B. Cliff-armoring C. Jetties D. Seawalls
A local mountain created by volcanism
A. is always accompanied by a regional increase in crustal thickness. B. cannot be a shield-type volcano. C. is always low in elevation and therefore has no need for increase in crustal thickness. D. may be high in elevation but is not accompanied by a regional increase in crustal thickness.
Star A and Star B have same temperatures, but Star A is more luminous than Star B. Based on this information, which of the following must be the case?
A. Star A and Star B have same size. B. Star A is more massive than Star B. C. Star A is larger than Star B. D. Star A is smaller than Star B.