The theory of Plate tectonics – developed from Alfred Wegener’s theory of Continental Drift to explain the movement of the continents – has become the prevailing theory underpinning our understanding ...

When individuals picture a volcanic eruption, they generally think of a mega-explosion involving torrents of burning lava and gargantuan ash columns towering miles into the sky. There are around ...

Volcanoes can look like small mountains or hills. A volcano is an opening in the Earth's crust that allows magma, hot ash and gases to escape. Composite volcanoes are the most common type of volcano.