The answer is to contain salt in low conecentrations.
Fresh water can only be considered fresh water, if and only if it contains less than 0.5 parts per thousands of salt in the water. Fresh water do contains salt, but it is in lower concentrations than salt water.
Explanation:
A body of water is taken into account recent once it doesn't contain considerable quantity of salt. The salt content of H2O is diversely expressed. However, additional ordinarily the used parameter and worth is zero.5 elements per thousand dissolved salts.
s water with a dissolved salt concentration of but I Chronicles.
