A foreign object or food item can be aspirated (sucked into) the airway and can cause obstruction and noisy breathing. Floppy tissues in the respiratory tract can cause noisy breathing due to the collapse of these tissues into the airway.
Sand is a loose, fragmented, naturally-occurring material consisting of very small particles of decomposed rocks, corals, or shells. Sand is used to provide bulk, strength, and other properties to construction materials like asphalt and concrete. It is also used as a decorative material in landscaping. Specific types of sand are used in the manufacture of glass and as a molding material for metal casting. Other sand is used as an abrasive in sandblasting and to make sandpaper. Sand was used as early as 6000 B.C. to grind and polish stones to make sharpened tools and other objects.
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.