why certain volcanic features may be present while others are absent, assignment help

Need 450 words no copying

please visit the Sunset Crater Volcano lava flow presented in Volcanoes Online.After visiting and taking notes on the volcano, discuss with your classmates why certain volcanic features may be present while others are absent. What interests you about these features? Explain.

http://geomaps.wr.usgs.gov/parks/sunset/sunsetft.html this is the site to use

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