Explore the definitions and examples of basic geographic terms, and learn geographic phrases pertaining to maps, meteorology, and human geography. Discover the variations between the physical features of jap Europe and western Europe. Only within the late nineteenth century such elements of the earth got here to be explicitly defined as continents. Africa, America, Antarctica, Asia, Australia and Europe. Australia is also solely the sixth-largest nation on the earth by method of population, likely partially because of a lot of its land is uninhabitable.
The watershed faces extra challenges because of urban improvement. Trees must be planted to forestall erosion, present wildlife habitat, and reduce air pollution ranges in waterways. The iconic Willamette River is 187 miles in length, drains a eleven,478-square-mile space (12% of Oregon’s landscape), and serves as a serious tributary of the Columbia River. Tree planting efforts right here will defend the watershed area of a basin that’s residence to two-thirds of Oregon’s population and generates 75% of its economic output. This project will reestablish forests to ensure clean drinking water for residents as well as improve water high quality and habitat for wildlife dependent upon this area.
That cycle of clumping and reopening of oceans is called the Wilson Cycle. The largest clumped continents corresponding to Pangaea are referred to as supercontinents. There are few guesses about the layout of continents before Pangaea because clues from earlier rocks are tough to decipher. Tectonic exercise not solely completely destroys oceanic crust, but it munches up continental crust. Africa’s geography is dominated by the Sahara desert, which is the world’s largest desert and is rising as a end result of environmental crisis. The Nile River is probably the longest river in the world , and it offers water to the countries of Sudan and Egypt.
North and South America are literally subcontinents, and never continents in any respect. Besides, the fashionable idea of continents does not contemplate merely landmasses, however somewhat political divisions. In that sense we may say that splitting America in two continents could be legitimate, but if that was the case then we should spare it in its three subcontinents which are North, Central and South America, and never solely two. The continent that Australia is half of known as Australasia or Oceana.