Mutaz is talking to Su about a project. Su can tell that Mutaz is unhappy with the project's progress because Su and Mutaz know each other well. This transmission of information is known as ____:

On the North American continent, the most conspicuous remains from the Neolithic period are:

a. animal heads. b. cave paintings. c. giant earth mounds. d. all of these. e. none of these.

Galileo's important discoveries were influenced by his

A. determination to win favor with the church. B. reliance on the theory of Ptolemy. C. use of the new technological invention, the telescope. D. dependence on the writings of Thomas Aquinas.