________ is a deposit of hydrothermal materials rich in carbonates
A) Travertine
B) Karst
C) Limestone
D) Stalagmite
E) Stalactite
Answer: A
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A. gypsum: CaSO4 B. azurite: Cu3(CO3)2(OH)2 C. gold: Au D. gibbsite: Al(OH)3
Briefly state why the development of the amniote egg was so significant in the evolution of the
reptiles. What will be an ideal response?
The reduction in the time it takes to diffuse something to a distant place is called
A) expansion diffusion. B) stimulus diffusion. C) distance decay. D) space-time compression. E) spatial interaction.
Which was not a reason for the present economic crisis in Europe?
A) Soviet interference in eastern Europe's economies B) cheap credit available to weak economies C) overspending by consumers D) overspending by governments