Volcanoes
Understand the Problem
The question appears to be a general inquiry about volcanoes, which could involve various aspects such as their formation, types, eruptions, and impact on the environment.
Answer
A volcano is an opening in the Earth's crust where lava, tephra, and steam erupt.
The definition of a volcano is an opening in the Earth's crust where lava, tephra, and steam erupt onto the surface.
Answer for screen readers
The definition of a volcano is an opening in the Earth's crust where lava, tephra, and steam erupt onto the surface.
More Information
Volcanoes can be categorized based on their activity levels, such as active, dormant, or extinct, which indicates their recent eruption history.
Sources
- About Volcanoes | U.S. Geological Survey - USGS.gov - usgs.gov
- Volcano | Definition, Types, & Facts | Britannica - britannica.com
- Volcanoes | Ready.gov - ready.gov
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