Chemsdro is an adventure game that has a mission to eliminate smoke pollution on the island's reaction rate by growing a magical tree in the middle of the city. Smoke will disappear if you can answer 10 questions correctly from 10 characters in this game. So you have to find the character to answer 10 questions and grow the tree. If your answer is correct then the value and tree will increase, but if it is wrong then the value will decrease and the tree will shrink.