Which feature(s) are you likely to have available in your e-book that you would not have available in the printed textbook? Choose all that apply. a. Immediate feedback regarding your answers on exercises b. Access to additional online practice c. Access to a full dictionary

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.