<span>The main character who must struggle against opposing forces is called the protagonist. The protagonist is the main character in a work of literature - for example, Dorian Gray in "The Picture of Dorian Gray," or Harry Potter in his novels, or Frodo Baggins in "The Lord of the Rings." A hero doesn't necessarily have to be a protagonist - it can be any character in a novel. A villain is a bad guy - an antagonist, and is the opposite of a protagonist.</span>
It's when you have too much nutrients in a lake or pond mainly from runoff in big rain storms, this can cause plants to grow more than normal and kill the fish in it for lack of oxygen.
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Where are the options? If its a multiple choice question type down all the choices so I/others can choose. :)
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