Earth’s mighty volcanoes offer more than a spectacular show when they explode. They’re also clues about what happens deep inside Earth’s surface. The text

Introduces volcanoes, describing their parts, how their are formed, magma, their relationship to tectonic plates, hot spots, kinds of volcanoes, eruptions and t

A lo largo de generaciones contemplamos el mismo paisaje. Montañas, valles y llanuras se nos presentan como una realidad estática en la que vivimos. Sin embar