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.
Weathering is the breaking down of rock into smaller and smaller particles. Weathering processes include frost wedging, acid rain dissolution, root growth, wind particle abrasion, heat expansion cracking, hydraulic fracture, and rock tumbling in rivers and streams.eathering is the  breaking down of rock into smaller and smaller particles.  Weathering processes include frost wedging, acid rain dissolution,  root growth, wind particl â¦ e abrasion, heat expansion cracking,  hydraulic fracture, and rock tumbling in rivers and streams.