vocabulary
Geographers can further divide regions into smaller parts called ?
Subregions
the government built embankments to control the flooding embankments are also known as ?
levees
building canals and gated passageways are called ?
locks
where waterfalls flow from higher to lower ground is called a what ?
A fall line
ocean storms that span hundreds of miles with winds of at least 74 mph are called ?
hurricanes
as sediment build up a flat lowland called ?
coastal plain
Missouri and Ohio rivers feed into the Mississippi are called what ?
Tributaries