Digital arts (inkscape)
1. when should you use the undo command?
2. when you close a file, what happens to the undo history list for that file?
3. what is freehand drawing?
4. what are three changes you can make to an object using the select tool?

1) whenever you make a mistake 
2) the undo stack clears and the undo history is gone
3) Free hand drawling using an input device to draw freely and whatever comes to your creative brain :)
4) you can crop after select, you can take the object and move it somewhere else, and you may also copy it and duplicate it as many times as you like