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Andrey Solovyev
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Chemical Substances: Chem-QuizExplore the fascinating world of chemistry with Chemical Substances: Chem-Quiz, an interactive and educational app designed to enhance your understanding and test your knowledge of over 300 chemical substances. This app is a comprehensive resource covering inorganic and organic compounds, all 118 c -
Maps of All Countries Geo-QuizAll Countries on the World Map: Learn and Guess Them All! Embark on a captivating geographic journey as you navigate the contours of 197 independent nations across all continents. From the familiar landscapes of Europe and Asia to the exotic realms of Africa and America, this interactive quiz will c