What parts of the Earth's crust float on top of the mantle?
A) stratosphere
B) tectonic plates
C) lithosphere
D) ozone layer
E) oceans
B
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The electric force between a pair of charges depends on the
A. separation distance between electric charges. B. magnitude of electric charges. C. both of these D. none of the above
The highest point on a summer beach profile is the berm
Indicate whether the statement is true or false
What has been a consequence of the "Arab Fall"?
a. increased peace among countries b. increased peace within countries c. increased authoritarianism and civil wars d. reduction in high temperatures and aridity e. greater international cooperation
Principle factors that come into play when volcanism affects climate include all but which of the following?
A. the size and rate of eruptions B. the latitude of the eruptions C. the heights of eruption columns D. the types of gases and the atmospheric level at which they are placed E. the isotopic ratio of oxygen gas (O2) emitted during eruptions