What is the principle of superposition, and what is its importance? Who is credited with discovering it? What will be an ideal response?
In an undisturbed succession of sedimentary rocks, the oldest layer is at the bottom and the youngest is
at the top. This principle, discovered by Nicholas Steno, is the basis for determining relative ages of
strata and their contained fossils.
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Which is an example of a nonmetallic mineral? Ca = calcium, Cu = copper, Al = aluminum
A. gypsum: CaSO4 B. azurite: Cu3(CO3)2(OH)2 C. gold: Au D. gibbsite: Al(OH)3
Mexico City's main plaza (zocolo) sits atop the ________
A) tombs of Spain's monarchs B) Aztecs' holiest temples C) gold stolen from Aztec priests in the colonial period D) skeletons of thousands of Aztecs killed during the colonial period.
Producers of automobiles select assembly plant locations primarily for their closer access to
A) government subsidies. B) labor markets. C) markets for finished automobiles. D) raw materials. E) water transportation.
E climates are polar climates
Indicate whether the statement is true or false