When two tectonic plates push towards each other, one continental, and another oceanic, the oceanic plate is subducting under the continental plate. This is due to the fact that the oceanic plates's crust is weaker and has lesser density, while the continental is stronger and has bigger density, so when pushing against each other, the weaker, less dense, oceanic plate can not oppose the stronger, more dense, continental plate and slowly subducts under it.
Here are some 5 facts I find interesting
-Some people use the term lithosphere to describe the geosphere. Depending on the definition of geosphere (which is debated by scientists), lithosphere can mean the same thing.
-The geosphere includes everything that looks like solid ground, including the ocean floors, sand in the deserts, rocks, mountains and every bit of land or formation on the continents.
-Aristotle, the Greek philosopher who lived from 384 - 322 BC, considered the geosphere to include the motion of earth, water, fire, and air
-There are eight major tectonic plates making up the earth's geosphere. They are constantly moving, but usually only a few centimeters each year,
-Scientific study related to the earth's geosphere can be broken down into specific disciplines including those covered in geology, geography, geochemistry, geomorphology, geophysics, glaciology, mineralogy, petrology, and volcanology.
Answer:
Rivers of the Coastal Plain were a major means of commercial transportation during the 1700s and early 1800s. Cities founded along the fall line, called “fall line cities,” are located at the places where these rivers crossed the fall line, marking the upstream limit of travel. The city of Columbus, for example, was established where the Chattahoochee River crosses the fall line; Macon, Milledgeville, and Augusta are similarly located at the crossings of the Ocmulgee, Oconee, and Savannah rivers, respectively. These cities became important transportation hubs because traders could only travel upstream until they reached the waterfalls of the fall line. At that point they were forced to disembark and reload their cargo on the other side of the falls in order to continue their journeys. Columbus served as the upstream head of navigation for the Chattahoochee, as did Augusta for the Savannah River and Macon for the Ocmulgee River. After the first steamship arrived in 1828, Columbus became a gateway city for cotton. Above the fall line, flatboats and barges moved goods around the state. Below the fall line, steamships had unimpeded access to move goods, mostly cotton, into the Gulf of Mexico.
Sub-Saharan Africa<span> is, geographically, the area of the continent of </span>Africa<span> that lies south of the </span>Sahara<span> Desert. Politically, it consists of all </span>African<span> countries that are fully or partially located south of the </span>Sahara<span> (excluding Sudan, even though Sudan sits in the Eastern portion of the </span>Sahara<span> desert).</span>
