Fresh water is scarce in many parts of the world and must be obtained at great expense. Communities near the ocean can desalinate sea water for this …
source

ویکی چه به دنبال پاسخ به سوالات از منابع معتبر و قابل استناد است.
Fresh water is scarce in many parts of the world and must be obtained at great expense. Communities near the ocean can desalinate sea water for this …
source