3. Chapter 7 explains that nonverbal communication is ambiguous. Identify nonverbal behaviors of Kim (in each version of the scenario) that could be interpreted in more than one way.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.