Chairs = common noun; Roll-O-Rocker = proper noun. Harriet threw the stale cucumber sandwich in the trash can and fantasized about a Big Mac dripping with special sauce. Sandwich = common noun; Big Mac = proper noun. Because we like an attentive waiter, we always ask for Simon when we eat at Mama Rizzoli's Pizzeria.
Answer: Reef Sand is live sand when it is on the bottom of the ocean floor, it is here where the reef sand is alive. When the Reef Sand has been out of the seawater for a period of time and exposed to the airborne elements it is considered to be dead sand. (lacking nitrifying bacteria).
The largest sand island in the world is Fraser Island, located of the coast of Queensland. It was formed during the ice age when great masses of sand were swept into the area by the wind. sand island is an island that is largely or completely made of sand. The largest sand island in the world is Fraser Island. Other examples of large sand islands are Moreton and North Stradbroke Islands which lie south of Fraser Island off the east coast of Australia.. http://en.wikipedia.org/wiki/Sand_island.