A person responsible for the implementation of electronic data interchange systems between companies. The EDI analyst is technical consultant for the trading partners and is involved with deploying systems using the traditional EDI standards and XML-based Web implementations.
Volcanic ash is also harmful when inhaled and  can damage the eyes and lungs. It can clog the engines of cars and  aircraft, and can bring down planes in flight. In some eruptions,  superheated clouds of ash and gas called pyroclastic flows race  down the slopes of a volcano.
Stratovolcanoes. Stratovolcanoes, or composite volcanoes, get their name from the different layers, or strata, of ash and lava that form them. Most stratovolcanoes are irregularly shaped mountains formed by material ejected from both a central vent and other vents on the sides of the mountain.thers are formed when the summit of a volcano collapses into an empty magma cavern that had stored the magma prior to eruption. Shield Volcanoes. Shield volcanoes, formed when large flows of lava spread rapidly from central vents or rows of vents, are the largest volcanoes.