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.
Coarse sand is much easier to work with then any other sand type. For the building industry, brick layers and cement renders rely heavily on sand materials. The importance of sand materials for building purposes is the required mixture of mortar and stucco for laying the bricks.oarse sand is much easier to work with then any other sand type. For the building industry, brick layers and cement renders rely heavily on sand materials. The importance of sand materials for building purposes is the required mixture of mortar and stucco for laying the bricks.