Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Problem:About two-thirds of the way through its course it receives the Meta River on its left and joins the Apure River. Early on it divides at La Esmeralda, and one of its arms, the Casiquiare River, flows southward. After it rises in the Parima Mountains, it follows a course resembling a reverse C and goes through the plains known as the Llanos [YA-nose] before entering the Atlantic Ocean. FTP, name this South American river that flows mostly through Venezuela.
Solution:
Social Science