The male leading tenor role in a Wagnerian opera is usually sung by a

One fundamental change that marked the beginning of the Neolithic period was

a. year-round settlements. b. use of bow and arrow. c. weaving. d. use of stone tools.

As a result of 1970s radio play decided by program directors and syndicated packages:

a. the DJ assumed increased responsibility and popularity b. the recording studios went into their vaults and re-released the 1950s-60s hits c. homogenized radio content was the norm d. the advertisers went on strike and didn't put their money into radio