A historian is awarded a grant to study the effects of industrial air pollution on sugarcane farms in Brazil. His research will focus on which major historical theme A. Interactions between humans and the environment B. Development and interaction of cultures C. Development and transformations of sociaol structures D. Creation, interaction, and expansion of political systems.

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

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in which two ways were the northeast woodland indians and the southeast indians similar? both collaborated to form the iroquois confederacy. both cultivated the crops of corn, beans, and squash. both lived in rich environments of swamps and rivers. both lived in tree-bark dwellings called wigwams. both expected men to hunt, while women farmed.

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