2. Positive space usually refers to the elements of a design that are understood to have implied volume, such as an object.
3. Negative space can be anything in a design that can be filled with objects that are in the background or that are less important than the main objects.
6. An object that is appears closer would normally be lower on the canvas.
7. Objects in the distance would appear darker when compared with objects in that are supposed to appear closer.
8. Yes, objects that are closer would appear to have a sharper focus than objects that appear further.
Nick