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.
âthe breaking up of rocks by physical forcesâworks in much the sameway. In this natural process, physical forces split rocks apart but donot change their compositionâwhat they are made of. Ice wedging,pressure release, plant root growth, and abrasion can all causemechanical weathering.