What is the difference between stone tool vs modern tools?

Which is the best example of a primary source ducument useful in the study of history ?

Which piece of legislation granted african americans the right to vote

The term globalization is best defined as: a. a reduction in the political and military power of imperial countries over their colonies. b. an increasing interaction among citizens and businesses of countries around the world. c. the spread of philosophies based on the right of all nations to political independence. d. the establishment of international laws protecting all people's human and civil rights.