Richard Wagner contributed at least two major ideas to the theatre—that of the master, unifying artist and that of the "classless" theatre with Continental seating

In conjunction with proportion, the vision of the architect or planner and the qualities of certain building materials allow for the creation of structures that are overwhelming in _____

a. color b. texture c. scale d. gravity

How much did the population of the Americas decrease in the century after contact with Europe?

a. 30 percent b. 50 percent c. 70 percent d. 90 percent