Correct Option: A

The volume of dry sand incr eases due to absorption of moisture. These volume increase of dry sand is known as bulking of sand. When dry sand comes in contact with moisture, a thin film is formed around the particles, which causes them to get apart from each other. This results in increasing the volume of sand. Percent increase in volume over dry, rodded, sand Percent of moisture added by mass to dry, rodded sand Fine sands Medium sands Coarse sands