Gravel areas where there is little traffic. Globally, far more roads are surfaced with gravel than with concrete or tarmac; Russia alone has over of gravel roads. Both sand and small gravel are also important for the manufacture of concrete. Large gravel deposits are a common geological feature, being formed as a result of the weathering and erosion of rocks. The action of rivers and waves tends to pile up gravel in large accumulations. This can sometimes result in gravel becoming compacted and lithified into the sedimentary rock called conglomerate. Where natural gravel deposits are insufficient for human purposes, gravel is
Granular cheese content is 39 percent, and the minimum allowed milkfat content is 50 percent by weight of the solids. Regular granular cheese must either use pasteurized dairy products or be cured for at least 60 days at a temperature of at least 35 °F. Either cows' milk or cream may be used as the main ingredient. Other permissible ingredients include clotting enzymes such as rennet, coloring, calcium chloride as a coagulation aid, enzymes used in curing, hydrogen peroxide, and agents used to protect against fungi. The name granular cheese can encompass many types of cheeses; for example, Parmigiano-Reggiano is a granular