What is another cause of artificial eutrophication?

Since you haven't told us what other causes are, it's impossible for us to find "another cause."

Please tell us the causes you've found -- and we'll try to help you.

fertilizer from farms, lawns, and gardens are the largest source of nutrients that cause artificial eutrophication.

BUT! What is ANOTHER! cause of Artificial Eutrophication???

http://www.google.com/search?hl=en&ie=ISO-8859-1&q=artifical+eutrophication&btnG=Google+Search

How about run off of manure from farm animals?

o.k thanks! :')

You're welcome! Yes, another cause of artificial eutrophication is the runoff of manure from farm animals. When manure is not properly managed or stored, it can be washed away by rainwater or irrigation and end up in nearby water bodies. The nutrients in the manure, such as nitrogen and phosphorus, contribute to the excessive growth of algae and other aquatic plants, leading to eutrophication. This can disrupt the balance of the ecosystem and harm aquatic life.