http://www.learner.org/exhibits/garbage/intro.html
This homepage is tell us about garbage problem. And there's many problem.
1. 4.6 pounds of solid trash per day.
2. hazardous catch fires easily.
3. sewage - sewage is not wasting not only environment sewage is wasting water too.
water is also needs to human's health, saftey and the environment. Waste water can consist of industrail waste human waste or run of from rainwater.
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