1 Air-Altitude, Density and Specific Volume-The density and the specific volume of air varies with elevation above sea level.  Tag Search.
What is the natural process that causes rocks to break down? Weathering from mechanical and chemical means is the process that causes rocks to become smaller and smaller; wind, rain, the sun, the freeze/thaw cycle, moving glaciers, chem â¦ ical reactions, and gravity are some of the causes of weathering.
The process of breaking down rock is called weathering (Figure 11.3). Physicalweathering Physical forces may break or chip rocks into smaller pieces. This process is called physical weathering. Physical weathering may break large blocks loose or chip away tiny grains, one at a time.