22022133
9780060280123
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Volcanoes are one of nature's great wonders. For years they can stand dormant, but once active they can erupt in tremendous explosions of power. Some eruptions are so big, they change the earth's climate. Luckily, geologists can now approximate when an eruption will occur. What are the causes of an eruption and what are the warning signs? Read and find out!Branley, Franklyn M. is the author of 'Volcanoes' with ISBN 9780060280123 and ISBN 0060280123.
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