What 3 factors control the explosivity of a volcano?
a. Temperature, Composition, Dissolved Gases
b. Ocean Currents, Climate, Uniformitarianism
c. Meteor impact, nebula hypothesis, oil production
d. Earthquakes, Magnetism, Dissolved Solids
Ans: a. Temperature, Composition, Dissolved Gases
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A renewable resource can be
A. used indefinitely. B. replenished by natural processes within hours to centuries. C. replenished by natural processes in millions of years. D. consumed completely if it is managed within its sustainable yield. E. found and used easily.
The river which carries the most traffic in Europe and is the continent's most important inland waterway is the:
A. Rhone. B. Rhine. C. Danube. D. Elbe.
In a battery, the following oxidation-reduction reaction is taking place: Mn2O3 + ZnO ? 2 MnO2 + Zn What is undergoing reduction as written?
A) Zn B) ZnO C) MnO2 D) Mn2O3 E) none of the above
All of the following are compounds EXCEPT ________
A) oxygen gas B) table salt C) methane D) glucose E) water