abstract:Live sand, a term used in aquarism, is natural reef coral sand populated with millions of beneficial bacteria and organisms which aid in the dissolving of organic wastes like ammonia, nitrites and nitrates produced by larger organisms in saltwater aquariums. Live sand can be purchased from Aquarium stores, but most hobbyists make their own by seeding dead sand with live sand from other aquarium systems.
Many of the animals that live in the sand dunes have become white.
VOA: special.2010.01.04
For humans are merely one form among many, which the world produces over and over again, not only in everything that lives but also in everything that does not live, drawn in sand, stone, and water.