Unlike the ash produced by burning wood and other organic materials, volcanic ash can be dangerous. ... An ashfall that leaves a thick layer of ash may cause roofs to collapse, clog gutters, and interfere with air conditioning units.
Mediterranean Sea. Mediterranean Sea, an intercontinental sea that stretches from the Atlantic Ocean on the west to Asia on the east and separates Europe from Africa. It has often been called the incubator of Western civilization.
Champa came to serve as an important commerce link between China and Srivijaya.
fault is a crack in the surface,and it is form through divergent,convergent and transform bounderies