Mikhail Gorbachev's reformist policies in the Soviet Union fuelled opposition movements to the Communist regimes in the Soviet bloc countries. The structures of the Eastern bloc disintegrated with the dissolution of the Warsaw Pact and Comecon. The Soviet Union broke up into independent republics.
Texas’ Gulf Coastal Plains are the western extension of the coastal plain extending from the Atlantic Ocean to beyond the Rio Grande. Its characteristic rolling to hilly surface covered with a heavy growth of pine and hardwoods extends into East Texas. In the increasingly arid west, however, its forests become secondary in nature, consisting largely of post oaks and, farther west, prairies and brushlands.
The interior limit of the Gulf Coastal Plains in Texas is the line of the Balcones Fault and Escarpment. This geologic fault or shearing of underground strata extends eastward from a point on the Rio Grande near Del Rio. It extends to the northwestern part of Bexar County, where it turns northeastward and extends through Comal, Hays, and Travis counties, intersecting the Colorado River immediately north of Austin. The fault line is a single, definite geologic feature, accompanied by a line of southward- and eastward-facing hills.
It would be the Piedmont plateau
There are thousands of rivers in South America, but the major ones are the Amazon, <span>Rio Sao Francisco, Madeira, Magdalena, Orinoco, Ucayali, and many many more. Many of the rivers that are considered to be major, big rivers, are still just parts of the Amazon which shows how big Amazon actually is and how important it is.</span>