Video: Fossil: Definition, Types, Characteristics & Examples. Fossils provide scientists with many clues about Earth's history, offering evidence of dinosaurs and strange plants that existed in the past. This lesson will define a fossil, look at different types and characteristics of fossils, and then describe how fossils are formed.
The final result of the dot product process can be: 1  Zero: we don't have any growth in the original direction. 2  Positive number: we have some growth in the original direction. 3  Negative number: we have negative (reverse) growth in the original direction.
1 It is neither positive nor negative. 2  The sign of an integer is either positive (+) or negative (-), except zero, which has no sign. 3  Two integers are opposites if they are each the same distance away from zero, but on opposite sides of the number line. 4  One will have a positive sign, the other a negative sign.