This is a short summary of the paper
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Mt. St. Helens
Start of Term Paper
Top of Volcano Blown Off In Blast! 18/04/82. 60 people were killed
today when Mt. St Helens blew its top
Mt. St Helens erupted two years ago today in a blast that caused the
volcano to be reduced by 451 metres (1313 feet). The volcano is south .... Middle of Term Paper
... 3)Pressure rises.
4)The pressure rises so high that the magma breaks through the crust and
volcano erupts.
Often volcanoes are cone shaped. You might ask: "How do they get like that?"
This is the answer:
When a volcano erupts many minerals and fragments are blown up, many
falling in a circle around the volcano. As lava flows onto this it builds up
around the volcano, so the volcano gets higher still. Each time the volcano
erupts, more lava, minerals and fragments are emitted. Therefore every time a
volcano erupts it erupts it gets taller, and some like Mt. St. Helens have even
become tall enough to be classed a mountai ... |
| Number of Words: 270 |
Approximate Pages: 1 |
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