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.
uk â /vÉlËkeÉª.nÉÊ/ us â /vÉËlËkeÉª.noÊ/ plural volcanoes or volcanos. B2 a mountain with a large, circular hole at the top through which lava (= hot liquid rock) gases, steam, and dust are or have been forced out: an extinct/dormant volcano. an active volcano. Erupting volcanoes discharge massive quantities of dust into the stratosphere.