Contains 75% of the world's active volcanoes.

A volcano that has erupted in the past 10’000 years.

Contamination of water supply: Debris and ash fall into lakes/rivers.

The lava cools and hardens to form igneous rock.

They are moving at a rate of 2cm a year.

Harmful gases released and lava from an eruption can cause the death of animals and people.

Homes and habitats can be destroyed by lava flow.

The Mid-Atlantic Ridge is created when the North American and South American plates separate from the Eurasian and African plates respectively.

Ash is harmful to aeroplane engines, this can result in travel disruptions.

Mid-ocean ridges are created just like volcanoes only they occur in the ocean.

Fertile soil: Lava and ash are full of nutrients which make the soil fertile, making it more efficient for agriculture.

The magma rises from the mantle through a vent.

Tourism: Reduces unemployment and increases the population of an area.