Which scientist contributed to our understanding of infectious disease

How did the new working class of the industrial revolution differ from the working classes of the earlier, farm based economy?

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.

Why do you think this exchange happened in a private meeting?