Answer:
Weather could make it so its safer to drive at lower speeds rather than higher ones. Hydroplaning can happen while driving at high speeds with water covering the roads. And usually just on a normal day, traveling at the speed limit is permissible, using common sense. When you're driving, you have to be aware of all environmental circumstances and base your driving off of that.
High=Balancing the budget
Low=Lewinsky scandal
All constitutional amendments must be proposed on congress/national convention
The new environment allowed for an exchange of new foods like corn. Crops that were grown the Americas and vice versa were able to be shared between two cultures.
