The most advanced cultures in North and South America prior to European discovery were concentrated in which region?
a. The current United States
b. The area that is currently central Mexico south to northern South America
c. The southernmost portion of South America
d. The area that is now the U.S. west coast
Question 2
Family life cycle research has found that:
a. during the eighties, age at first marriage differed substantially from the pattern at the turn of the century
b. all families go through similar stages of development
c. few families experience substantive changes in the internal system of role relations during their passage through the family life cycle
d. the idea of a family life cycle is a useful measure of change in families
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North American Cordillera
What is the mass % of H2S04 in concentrated sulfuric acid?