volcanoes

Question 1

Formation of volcanoes

Answer 1

1) 2 plates collide/separate, magma rises and fills the vent. this is an eruption + can be violent due to the pressure
2) Magma wells up from the magma chamber, cools + hardens when it reaches the surface
3) After lots of eruptions layers of ash + magma build up around the vent + a cone shaped mountain is formed, with the lava flowing from the crator

Question 2

Describe + give an example of an active volcano

Answer 2

A volcano that erupted in the last 10,000 years
Eg. Mount St. Helens, North America

Question 3

Describe + give an example of a dormant volcano

Answer 3

A volcano that hasn’t erupted in 10,000 years, but is expected to
eg. Killimanjaro, Tanzania

Question 3

Describe + give an example of an extinct volcano

Answer 3

A volcano that is not expected to erupt, ever again
eg. Mnt Kenya, Kenya

Question 4

Name 2 social benefits of the E15 eruption

Answer 4

Reduced unemployment
Increased tourism + employment

Question 5

Name 2 economic benefits of the E15 eruption

Answer 5

Generated income
Fertile soil

Question 6

Name 2 negative social impacts of the E15 eruption

Answer 6

Contaminated water supply
locals evacuated

Question 7

Name 2 negative economic impacts of the E15 eruption

Answer 7

Travel chaos
Loss of earnings