Which amendment guarantees that all powers not mentioned in the constitution belong to the states

Which were the most important issues during the presidential election of 2008? economic downturn and environmental protection two overseas wars and economic downturn two overseas wars and campaign spending environmental protection and campaign spending

How does the process of constructing a historical narrative differ from the process of creating a timeline

What major land feature is located at 0* and 20* e? a sahara desert b kalahara desert c congo basin d the alps