Tsunami generated by asteroid impact are common.?
a. True
b. False
ANSWER: False
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Match the substance with the correct description.?
A. ?dominant pollutant responsible for global warming B. ?pollutant that destroys ozone C. ?primary component of photochemical smog D. ?indestructible and potent neurotoxin E. ?pollutant responsible for acid deposition
The effects of mass wasting can be minimized by ____
A)building retaining walls B)installing seismometers to detect earthquakes C)building only on slopes where rocks dip in the direction of the slope D)adding mass to stabilize a slope E)eliminating building restrictions
According to the theory of isostasy, the crust:
a. tends to establish a uniform elevation over the entire earth b. tends to establish an elevation directly proportional to its density c. tends to establish an elevation inversely proportional to its density d. is fixed and cannot change in elevation
Federal mineral-resource laws of the late nineteenth century were designed to preserve mineral resources by restricting exploitation.
Answer the following statement true (T) or false (F)