3M Reference Libraries
The Post-it note is a piece of stationery designed for temporarily attaching notes to documents and other surfaces through the use of a strip of adhesive on the back. They are most commonly seen in a 3-inch square and yellow in color although they can come in a variety of shapes, colors, and sizes. A low-tack adhesive allows the notes to be stuck and removed quickly with no residue left behind....
- Having no light.
- Of or relating to the region of a body of water that is not reached by sunlight and in which photosynthesis is unable to occur.