The Internet is represented in the communication model by the word(s):

The pitch of a sound refers to its:

a. highness or lowness b. strength or weakness c. loudness or quietness d. tonal quality or color

Who was the target of a major investigative journalism series written by Ida M. Tarbell for McClure's magazine in the early 1900s?

A. John D. Rockefeller B. Mark Twain C. William F. Buckley D. William Gates