Economy of South America centuries. This can be explained by South America´s high concentration on primary commodities as well as the state of the educational system and institutional structure, some of which are still related to its colonial past, others to recent political developments. It was only from the 1990s when countries in South America switched over to the system of Free-Market economy. This eventually pulled countries in South America out of the debt crisis. Now, major economic activities include agriculture, industry, forestry, and mining. In 2016, four countries, which include Brazil, Ecuador, Argentina and República Bolivariana de Venezuela experienced decline in output. Other
USS Simon Bolivar (SSBN-641) the Rota SSBN site. Departing the site then diving, the ship headed southeasterly for passage through the Straits of Gibraltar into the Mediterranean Sea. She then went to alert status for her 24th deterrent patrol. Following completion of the patrol, the ship traveled westward across the Mediterranean through the Straits of Gibraltar and into the Atlantic. Seventy four days after departing Rota and submerging, "Simon Bolivar" surfaced off the US east coast in October 1974. "Simon Bolivar" had now been assigned to the Charleston refit site and was again part of Submarine Squadron 18. Submarine tender provided refit and re-supply