The fossil range can simply be defined as the time period in which an organism has existed, thus left fossil traces of its existence. The fossil range can be very short, medium, or long, thus usually there are limitations before certain type of organism evolves into another species, thus eliminating the ancestral organism from the fossil records. On the other hand, there are organisms that have incredibly big fossil ranges of several hundred million years, and since they emerged, they have remained almost unchanged. Those kind of fossil ranges are very rare though, and they don't represent the general picture. Most of the fossil ranges are between several thousand years and several million years, as that is usually how much a species exists, ending its reign, be it because of competition, changes in the environment, or big natural disaster.
NAD 27 is based on the longitude and longitude, and the direction between points. NAD 83 is an earth centered datum which does not have beginning point or direction.
A jet stream is a fast flowing air current that occurs in the atmosphere of Earth and other planets. A global wind belt is formed by the Earth's spin and the unequal heating of the Earth via sunlight!
<span>#1 is "globalization." The increase in the number of jobs available in other countries and continents allowed for people to relocate to find well-paying employment. This lowered the number of jobs available in the US. #2 is "service industry," since many service industries are not as likely to be unionized as manufacturing jobs.</span>
