Water as an item includes primarily H2-0, but it also includes many other gases in liquid or solid form. It is most often valued for industrial and agricultural applications, and is typically transported in solid form (ice).
Water is a Planetary Resource that can be extracted from a Water Purification Plant, if it is listed on the Planet's Geological Survey (GEO), or converted from Raw Resources on any Planet using a Stripmining Complex.
1 ton
Already learned - your empire starts with this technology.
Content contributed by Raven Zachary.