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.
Brief explanation: Volcanic vents are openings in the crust, usually within the crater of a volcano, where magma (molten rock) and volcanic gases escape from the volcano's interior. Typically, a volcano's crater may contain several vents. A single vent can consist of a single round opening, or a larger or smaller fissure or fracture. Steaming vent inside the crater of Bromo volcano, Indonesia.