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 If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study. 2  If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.