The first thing to understand is what your disability rating represents. In short, the VA takes each individual injury or illness into consideration and gives it a numerical disability rating. Each rating is represented by a percentage divisible by 10 (ex: 10%, 20%, 30%, 40%, etc.).
The image below shows the different parts of a volcano. Definitions. Magma-Molten rock beneath Earth's surface. Parasitic Cone-A small cone-shaped volcano formed by an accumulation of volcanic debris.Sill-A flat piece of rock formed when magma hardens in a crack in a volcano.Vent-An opening in Earth's surface through which volcanic materials escape.Flank-The side of a volcano.hroat-Entrance of a volcano. The part of the conduit that ejects lava and volcanic ash. Ash-Fragments of lava or rock smaller than 2 mm in size that are blasted into the air by volcanic explosions.
Volcano Shapes. Most land volcanoes have the same basic structure, but volcano shape and size varies considerably. There are several elements that these different volcano types have in common are: 1  a summit crater-the mouth of the volcano, where the lava exists.2  a magma chamber-where the lava wells up underground.onsequently, its composition, shape and structure are all determined by the nature of the volcanic material and the nature of the eruption. The three main volcano shapes are: 1  Stratovolcanoes: These are the most familiar type of volcanoes, and generally have the most destructive history of eruptions.