Help- i dont understand it
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In the 1800s, most european powers followed policies of in which they imposed political and economic control of peoples around the world. a. imperialism b. expansionism c. mercantilism d. isolationism

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?

Which statement presents a counterclaim to james cross giblin's viewpoint? egyptian hieroglyphs provide information about the country's history, medicine, science, and laws. the rosetta stone allowed people to read ancient egyptian writing. learning how to read hieroglyphs is the best way to understand the ancient culture of the egyptians. digging up ancient egyptian tombs teaches us more about the way people lived than hieroglyphs do