Manipur, Oct. 1 -- Sand is one of the most consumed natural resources on the planet. The United Nation estimates that mining of sand and gravel may exceed 40 billion tons a year. Due to high demand for sand that planet's resources are now being threatened; then-quarries of the World's beaches are already in declined. Sand is used in our daily life in numerous ways. Houses, skyscrapers, bridges, airports and sidewalks are all partially comprised of sand, making it an essential requirement for the construction booms happening around the World. Sand is also the source of silicon dioxide or silica, a mineral found in our wines, cleaning products and the detergent, paper, toothpaste and astounding variety of other products we use on daily basis....