Representative elements are also known as Group A elements.
For water to be drinkable, it must have sufficiently low levels of dissolved salts and microbes.
This would be snow falling on a glacier since the <span>cryosphere has to do with frozen water on the surface of earth (AKA Glaciers) and the snow comes from the atmosphere. So we can say that snow and glaciers make an atmosphere-cryoshere interaction.</span>
