4. As with any resource, there are costs and benefits to using the rivers of the world for water and power. Describe these costs and benefits of
the Yellow River's use over time. What role should the government
take in protecting rivers? What about companies and individuals?

The major impact third parties have on presidential elections has been to.. a. encourage larger vote turnout b. recruiter leader from the democratic and republican party to run for president c. generate increased party identification among the electorate d. developing issues that are later adopted by the major political parties e. drawn off of votes from the major parties to throw election into the house representatives