What problem should be face​

What statement shows that the agreement between the fictional nations of ziberia and deerkey is a free trade agreement?

This is a crossword assignment for psychology 8 letter word a benefit of observational research is that it often generates

Science cannot describe things that a.) are beyond imagination, experience, or human ability b.) cannot be observed, measured, or tested c.) have not been conclusively proven d.) occur without being seen, heard, or felt