Mobile, Alabama. Mobile, Alabama, on the Gulf of Mexico, is home to Evonik's largest North American site. The 700 or so employees here produce hydrogen peroxide, fumed silica, and the animal feed additive methionine, among other chemicals.
A complex volcano, also called a compound volcano, is a volcano with more than one feature. They form because of changes in their eruptive characteristics or the location of multiple vents in an area.
A volcano is a landform that is formed through the eruption and accumulation of lava and other solid material. It starts as a vent, hole, or crack in the Earth's surface, through which hot molten rock (lava), gases, and tephra erupt. volcano is a landform that is formed through the eruption and accumulation of lava and other solid material. It starts as a vent, hole, or crack in the Earth's surface, through which hot molten rock (lava), gases, and tephra erupt.