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World rivers quiz (Geography1).

Description: Geography quiz, concerning the longest rivers of the world. The user may choose between the following kinds of quiz questions:

It's also possible to choose, which rivers, the quiz questions should be about: the 20, 50, 100 or 181 longest rivers of the world, or the longest rivers of a given continent.
In general, the answer may be chosen from of a list. For the outflow, manual entry (requiring more Geography knowledge) is also possible. For the drainage countries, the user has to choose the correct ones from 5 countries, proposed by the program (from 0 to 5 of which may be correct answers).

Free Pascal features: Re-arranging, showing and hiding form controls during run-time. Filling comboboxes and changing checkbox labels during run-time. Reading text files (classic Pascal). Complex data types (classic Pascal).


Geography quiz: European rivers length
Geography quiz: African rivers drainage countries