1. air waste Caused by burning garbage outdoors, causing smoke and toxic air, making the air quality deteriorated.2. waste water originating from a garbage pile on the floor. When rain falls on a pile of junk would pose very dirty with waste water flowing into the river.3. the source vectors Caused by a pile of junk on the floor cause the breeding of rats and flies, they carry diseases make have an impact on student health.4. make the University no longer beautiful. Resulting from the garbage, not including the garbage pile on the floor, odor interferes with faculty and students.
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