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.
Composite Volcano. A steep-sided volcano composed of many layers of volcanic rocks, usually made from high-viscosity (thick like honey) lava, ash and rock debris (broken pieces). Dome. A steep-sided mound that forms when viscous (thick like honey) lava piles up near a volcanic vent (opening at the surface).