Using the data in this table, calculate the number of half-lives that have passed for the granite (unit G on this table).
A) 1
B) 2
C) 3
D) 4
E) 5
C) 3
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Capital is the only factor input that is sentient
Indicate whether the statement is true or false
Podzolization usually occurs in conjunction with:
a. Oxisols. b. coniferous forests. c. broadleaf evergreens. d. all of these.
Which statement best describes how region 1 will look in the future? 
A. a deep basin that is underlain by oceanic crust and a thin sediment cover B. above sea level as this area becomes rifted apart C. higher in elevation because magma generated along a subduction zone will rise into and thicken the crust
Bulgaria primarily produces two goods, nesting dolls and grapes. The production of both goods primarily requires labor. The following table shows possible combinations of nesting dolls and grapes. Suppose Bulgaria prefers grapes. Which of the following points is better?
A. A B. B C. C D. E