bibliography:
Australian Geo Sciences: http://www.ga.gov.au/hazards/volcano/volcano-basics/what.html
Dates: 29-10-2013 till 1-11-2013
Google images: https://www.google.com.au/search?
Dates: 29-10-2013 till 3-11-2013
Volcano World: http://volcano.oregonstate.edu/
Dates: 2-11-2013
Wikipedia: http://en.wikipedia.org/wiki/Volcano
Dates: 29-10-2013 till 3-11-2013
Youtube: http://www.youtube.com/watch?v=zJgwNqzumL8
Dates: 3-11-2013
Dates: 29-10-2013 till 1-11-2013
Google images: https://www.google.com.au/search?
Dates: 29-10-2013 till 3-11-2013
Volcano World: http://volcano.oregonstate.edu/
Dates: 2-11-2013
Wikipedia: http://en.wikipedia.org/wiki/Volcano
Dates: 29-10-2013 till 3-11-2013
Youtube: http://www.youtube.com/watch?v=zJgwNqzumL8
Dates: 3-11-2013