A volcano is an opening in the Earth's crust. Ash, magma and gases escape from this opening. Volcanic eruptions can be a hazard to people and the environment. One positive effect of a volcanic ...
Deadliest volcanic eruption: The 1815 eruption of Mount Tambora in Indonesia, which killed up to 100,000 people From lava fountains to towering ash clouds, volcanoes produce some of the most ...
A 30,000-year-old vulture feather from Central Italy was preserved down to the microscopic level by volcanic rock.
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