In the post-industrial era, an edge city is a concentration of businesses, shopping and entertainment outside a traditional downtown in a location which had either been residential or rural. These were cities that often developed near airports, as many airports developed outside of city centers but close enough to have ease of access for people coming in and coming out. Examples of an edge city are Tysons Corner, Virginia (lies next to Washington,DC) and Detroit's New Center, which was within Detroit's city limits, but away from downtown.
By passing a law assisting slaves in gaining their freedom in the North .
This is an example of Positive reinforcement.
Positive reinforcement is the addition of a reinforcing stimulus (giving the dog a treat) following a behavior (rolling over), that makes it more likely that the behavior occurs again.
<span>Garbage patches are more likely to form in the center of gyres, where there are currents pushing stuff toward the center but none flowing outward.</span>
