Question

I know that fresh water will freeze faster than salt water but I need to fill in a table. The table shows some variables which are the amount of water and the amount of salet. I need to write how I would control each variable and I do not quite understand what to do?

http://www.fao.org/DOCREP/003/P3407E/P3407E04.HTM

http://nsidc.org/seaice/intro.html