When a piece of shiny silver jewelry gets tarnished, what has happened? a. the silver is interacting with water. b. the silver reacts to sulfur in the air. c. a flame has gotten too close to the silver jewelry. d. the silver is turning into iron.

Apex q: what does a low employment rate indicate? a. not many people are earning high salaries b. not many people are going to college c. not many people are renting their homes d. not many people have jobs

All of the following are characteristics that must be contained in any knowledge representation scheme except

Ingrid started speaking about her slide presentation. when she clicked to th"third slide, which had just a picture of an elephant, she forgot what she wassupposed to talk about. what could ingrid do to avoid this situation in thefuture? oa. print handouts for her audience. ob. add presenter's notes to each slide. oc. add a video to each slide. od. save her slide presentation to a flash drive