Conservation of water - take the quiz
{"name":"Conservation of water - take the quiz", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"What percentage of the Earth's water is freshwater?, Which of the following is a major cause of water pollution?, What is the primary source of drinking water for most people in developed countries?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}