142K views · 611 reactions | What causes volcanic eruptions? | Sky News | Facebook

2.4K views · 65 reactions | Portals into the machinations of the Earth, volcanoes take many forms – and occur due to a range of underlying processes. Take a look at these spectacular examples to understand a little about their destructive power – and the reason why | National Geographic UK | Facebook

934K views · 6K shares | Mount St. Helens blew its top 36 years ago, but it remains alive today. See how Earth's 500-some active volcanoes were formed. | National Geographic | Facebook