To be considered fresh water, water must contain salt in a concentration

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.

Talc (french chalk) is the ingredient

A) the enthralling of formation for pure element in its standard state is always positivehope this : )