While cocaine remains the most widely used drug in South America, which drug is considered most problematic globally? the 1970s

What feature do the arkansas river valley and the mississippi alluvial plain region have in common

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is:

Identify why the western ports were important to the united states.