The crests of mid-oceanic ridges ________
A) are geologically old features B) contain active rift zones
C) are heavily mantled with sediment D) lie at depths exceeding 6 kilometers
B
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Geopolitics
A) was first discussed in the middle of the twentieth century. B) focuses on the economic cooperation between countries. C) includes ideas that advocated territorial expansion of countries. D) is the study of political geography.
Construct a topographic profile of the map below along line AB. Draw your profile in the graph provided.
True or False: Limestone, composed mainly of calcite, can form by both inorganic and biologic processes
Indicate whether this statement is true or false.
Most water vapor comes from
A) rivers and streams. B) the oceans. C) falling rain and snow. D) sublimation of snow and ice. E) respiration by living organisms.