An important element of easy-to-read instructions is the use of _______ words

What message is conveyed by interrupting someone talking?

A. What they are saying is not important. B. You need to have your say. C. They should be listening to you. D. The other phone line is ringing.

At what temperature does white phosphorous spontaneously ignite?

a. 386° F b. 286° F c. 186° F d. 86° F