Volcanoes Flashcards
What is a volcanologist
It’s a person who studies volcanoes
What’s the formation the a volcano
1lava erupts through a small hole (vent)
2 as more and more magma comes through it cools down and hardens
3after many eruption layers of lava and ash build up around the vent
What’s the life cycle of a volcanos
Active: any volcano that has erupted in the past 10,000 years
Dormant: any volcano taht hasn’t erupted in the past 10,000 years
Extibct:a volcano that is never expected to eurruot again
What r mid ocean ridges
They r a narrow chain of mountains in the ocean
What’s the Pacific ring of fire
Is where most of the world earthquake and volcanoes are
What is eyjafjallajökull?
It had violent and explosive corruption it had very little lava but a ton of smoke
What r positive impacts of the volcanos
Social impact:reduced unemployment and increased tourism and employment
Economic impact:generated income and fertile soil
Negative impacts of a volacno
Social impact:contaminated water supply and evacuation of locals
Economic impact:travel chaos and loss of earnings