Differentiation refers to the process in which the earth:

a. accreted from smaller terrestrial bodies
b. was bombarded by frequent meteorite collisions
c. became chemically segregated due to melting and sinking of iron
d. became a separate and distinct planetary body along with the other terrestrial planets


c

Environmental & Atmospheric Sciences

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How many electrons are associated with a double bond?

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Which of the following is true of those steps of glycolysis which yield pyruvate as the end product?

A) They all occur in the cytoplasm. B) They all occur in the mitochondria. C) They occur primarily in the cytoplasm. D) The occur primarily in the mitochondria.

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Four out of five cities in the United States that lost population between 2000 and 2010 were located in ________

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