Water Resources and Water Pollution - ppt download
{"Image DocumentName": "Streams can cleanse themselves, if we do not overload them", "Image ImageDescription": "In most less-developed countries, stream pollution from discharges of untreated sewage, industrial wastes, and discarded trash is a serious and growing problem. According to the World Commission on Water in the 21st Century, half of the world\u2019s 500 major rivers are heavily polluted, and most of these polluted waterways run through less-developed countries.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}