A waterfall is a free, vertical fall of water caused by differences in height in a riverbed or stream. A series of waterfalls in a sequence is called a cascade. Waterfalls occur on every continent in the world, and some of them stand out from the rest.
Countries of the World
In reality, there are over 200 independent states in the world; however, the official number of countries is lower. There are many reasons why certain territories are not considered states.