Some expensive or rare mineral salts must be recycled.

All alkaline earth metals and their salts are reactive and they have a blue-print that identifies them as an alkaline earth metal but metals exist as metals, and salts as salts, with different structural compounds.

These salts are dissolved from the Earth rocks.

Salts are dissolved from the Earth by rivers and transported in seas and oceans.

Salts are dissolved from the earth and transported by rivers in oceans.