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).
Sand is a common material found on beaches, deserts, stream banks and other landscapes worldwide. In the mind of most people, sand is a white or tan, fine-grained, granular material.However, sand is much more diverse-even beyond the pink sand beaches of Bermuda or the black sand beaches of Hawaii.These are just a few of the many types of sand.The word sand is actually used for a particle size rather than for a material.. Sand is a loose, granular material with particles that range in size between 1/16 millimeter and 2 millimeters in diameter.he small tan sand grains in this photo are of a fine-grained sand from Qafsah, Tunisia. They are about 1/16 millimeter in diameter-the lower limit for a grain to be called sand size.. The large brown grain is from near Worthing, England.