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by birdmachine
Last updated 7 years ago

Earth Sciences

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Causes of a avalanche



Images of avalanches

Results of a avalanche

Two results of a avalanche would be death and destruction when someone is traped under snow from a avalanche only 1/2 survive. Which means the half of 150 people died from not a sufticient amount of oxeygen or from hipotermia both are horrible ways to go!


1. Wikipeatia 2. Google 3. Youtube 4. Avalanche.org

1.An avalanche is a rapid flow of snow down a sloping surface. Avalanches are typically triggered in a starting zone from a failure in the snowpack when the forces on the snow exceed its strength but sometimes only with gradually widening. After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current.2. Another way a avalache may start is from a nosie very loud which causes them to start! For instance if you are sking you may have to yell to a friend for him/her to hear you which could cause a avalache.3. An avalanche occurs when the snowpack — or the layers of accumulated snow — on the side of a mountain is in some way disturbed, leading to a fracturing of the top layer and a downward torrent of a large mass of the white stuff.

1. Impacts on the human population are useally negitive, for instance avalanches cause more than 150 deaths per year world wide.2. If you look at the positive from a avalanche like how many people from Red Cross are getting jobs you see that they are picking up from avalaches and how the avalaches would be destroing someones house which ends up being a negitive. So the truth is there is no positive to a avalanche.3.forested areas are in the path of the avanlance, which they bury them alive and can crush them. so that animals no longer have their homes.

Impacts on the human population


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