Describe in detail the cause of the problem and the harm it causes. Describe in detail the harmful effects of the problem. What harm is done to the environment? What are the effects on humans, birds, animals, etc... What is the effect on taxes (cost of clean up or fixing it) employment, and industry. How big of a problem is it. Is it getting worse?
What harm do water chestnuts cause?
You mean apart from ruining my chinese takeaway?
Get more information here
http://www.invasivespeciesinfo.gov/aquat...
Reply:didnt know water chestnuts were a problem
Reply:Are you talking about water hyacinths?
Reply:The only harm I know of is when they get old, and then people say, "Oh, that's an Old Chestnut."
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