"Eco of pot (quiz ed.)," Is an app to learn about environmental issues while enjoying in the quiz. From beginner's quiz from the elementary school level, it is up to the eco problem for adults and eco-English. In Ekokuizu (beginner, intermediate and advanced) Eco English (Eco-term, the English word, applications), will appear on the exam different problem every time five questions. Or appeared original character and points accumulate, you can also simple game. Please feel free to try to challenge even to a little free time.