Pollution
{"name":"Pollution", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"1. What is the primary source of air pollution from vehicles?, 2. Which of the following is a major contributor to water pollution?, 3. What is the term for pollution that occurs when chemicals seep into the ground and contaminate groundwater?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}