Volcanoes are formed when magma (liquid rock ... when Eyjafjallajokull erupted in Iceland in 2010. The ash cloud spread all over Europe, which meant that over 100,000 flights had to be cancelled.

Pyroclastic flow. Hot gas, ash and rock mixed together to make a deadly cloud that flows down the side of the volcano. It’s not all bad. They can also be tourist attractions! The lava and ash ...

"What if one day you turned on the news channel to learn that every active volcano on Earth is erupting. If all the volcanoes on Earth erupted at once President Joe Biden on Sunday became the ...