In surveys Mason City residents rank water sports (swimming, boating and fishing) among their favorite recreational activities. The Mason River flowing through the city is rarely used for these pursuits, however, and the city park department devotes littl

The argument states that "Use of the river for water sports is therefore sure to increase" because the state has recently announced plans to clean up Mason River. This argument is not logically convincing because author did not consider some crucial assumptions which made his argument totally unsubstantiated.

First assumption argument assumes is that complaints from residents for cleaning up mason river is because they want to use it for their favorite recreational activities. Author did not give any reason for this assumption. For instance, take residential houses near mason river because city park department devotes little of its budget to maintaining mason river due to which quality of the river's water and the river's smell spoiled and its smell became more worse. Now if a residential has to live in territory of mason river, they can not live because its not viable for lives to survive, they will suffocate because of river's bad smell. Obviously majority will go for complains against city park department which is responsible for maintaining mason river. But author assumed it is differently that they want to use it for recreational activities which lead to flaw in argument.

Second assumption argument assumes is that residential people are going for rarely use of recreational activities. Author did not give any reason for this assumption. May be there are several rivers other than mason river in city. residential people found those rivers more comforting and convenience and they were doing their recreational activities in those river than doing it in mason river. So even if city park start maintaining mason river residential people will not use it for recreational activities which is totally contradicting argument that Use of the river for water sports is therefore sure to increase.

ultimately, argument is completely unsound. evidence in favor of argument that Use of the river for water sports is therefore sure to increase is little supporting. Argument can be strengthened by taking assumptions which are states above that residential people use only mason river for recreational activities and people complained because they want to maintain mason river for continuance recreational activities.