Volcano – An opening (a hole) in the Earth's crust from which lava, ash and gases erupt
To remember the meaning of the term Volcano, use the following mnemonic:
VOLCANO
The 'O's in volcano are there to remind you that volcanoes occur because of an 'O' (hole) in the Earth's crust.
There are two main types of volcano – composite volcanoes and shield volcanoes. There is more about these on the following two pages.
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