APRIL 3 Scientists have many problems that they are working on but are unable to reach a useful solution. There are a number of

constraints that can make problems unable to have a solution. Match the current scientific problem and the major

constraint to finding a solution.

Available technology

Alternative energy resources

Cost and technology

Identifying life on other planets

Political and moral issues

Ocean desalination

Political issues and public interest

Using nuclear fusion as an energy source

Cost

Using stem cell technology to cure disease