how do volcanoes affect the environment?

Question

(science project)

Answer 1

When they blow, very negatively. Makes the 'human made' global warming a laugh.

Answer 2

they both create environment and destroy it


the CREATOR,
many islands are build from erupting volcanos.on the Ocean floor,
like Hawaii.Bimini,

the lave cools and solidifies from the bottom up and progressive eruptions build a tower under water that reaches the surface and becomes an island with a volcano on top

volcanic soil is very fertile when it is broken down by trees like coconuts(which arrive, floating on the sea) they tend to be the first pioneers that build soil ,with all the rubbish they produce.
together with the strong root action of the palms that burrow into the rock ,

Visiting birds drop more seeds into the compost fom the coconuts,
other vegetation devellops and drop their organic waste material and soil is born.

the volcano has created a world from scratch with the inicial help, of coconuts and birds

the KILLER
for the same money an eruption can cover the whole place with dust sometimes 2 meters high and kill everthing in secconds ,as happened with Pompeii,and it is impossible to breathe in sulpher clouds.
not to speak of the molten lava which deletes everything in its path

and dust clouds hanging in the air sometimes for months can block out the sun for long enough to kill life well beyond the lavas reach or the falling dust.and have a global climatic effect if there are enough or big enough eruptions

a wold full of erupting volcanos could even trigger an ice age ,blocking out the sun for long enough with dust clouds hangong in the sky for months during the winter time.

Answer 3

Locally they can bury you in ash or burn you with lava. Large volcanoes tend to throw a lot of sulphur into the upper atmosphere which can have a temporary cooling effect on the whole planet.

Answer 4

They send down a lot of ash and molten rock around where they go off. Also, they send lots of particles into the air. These can actually cool the air.

Answer 5

Well, they destroy the trees and forests around them and they also release a great deal of soot into the air. The animals around the explosion would die as well due to this.

Answer 6

http://www.geology.sdsu.edu/how_volcanoes_work/climate_effects.html