Spreading The Zebra Muussel In North America
In this article, the author asserts that spreading the zebra mussel in North America is a threat since this invasion cannot be stopped, and provides three reasons of support. However, the professor explains that there are some ways to stop the spreading of this fish because our knowledge is increased and it is not limited. He also contrasts with the author's reasons by proving the additional convincing information. First, the author points out that the invasion of the zebra mussles might be unstoppable because they attach to ship's bottoms which used as a way of transportation, and they can survive in the balance water. However, the professor refutes this point by explaining that there are now some ways for stopping this. In fact, the zebra