What gas is in the largest quantity when released in a volcanic eruption?
A. carbon dioxide
B. sulfur dioxide
C. water vapor
D. fluorine
E. hydrogen sulfide
C
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The main cause of civil strife in Rwanda stems from
A) antidemocratic values learned from the Germans. B) interference by South Africa. C) the Belgian colonial practice of favoring Tutsis. D) the legacy of superpower competition left over from the Cold War.
What was the most important factor in predicting how the 2010 Deepwater Horizon oil spill would travel?
A) Density of the oil B) Patterns of oceanic and atmospheric circulation C) Thickness of the spill D) Ocean floor bathymetry
Consider the names of the eras in the geologic time scale. What is meant by "zoic"?
A) time; recording of events B) life; living things C) rocks; lithified strata D) places; geographic references
Floods only occur where human activities tamper with natural stream systems.
Answer the following statement true (T) or false (F)