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According to the earth science reference tables, during which geologic time period were the continents of north america, south america, and africa closest together?

Explain the value of statistics and other data to positive economics and to normative economics

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.