Volcanic Hazards

Question 1

Name 6 volcanic hazards

Answer 1

Ash, gas, acid rain, Lahar, pyroclastic flow, lava flow

Question 2

Ash

Answer 2

The smoke cloud normally seen from an eruption is ash.
Travels for miles and settles as ash fall.
Can provide very fertile soil.

Question 3

Gas

Answer 3

Volcanoes produce gas when they are erupting.
This includes Co2 , steam and sulphur dioxide.
Volcanic gasses smell of rotten eggs due to the sulfur

Question 4

Acid rain

Answer 4

The sulfur emissions from volcanoes can cause acid rain.
Dangerous to plant and animal life.
Harm humans.

Question 5

Lahar

Answer 5

Mudflow from a volcano.
Dangerous energy and speed.
Fluid when moving but solidifies when stopped.

Question 6

Pyroclastic flow

Answer 6

Floods of gas , lava and rock that rush down the volcano after an eruption.
Hot gasses and high speed make them lethal.

Question 7

Lava flow.

Answer 7

Created by non explosive eruption.
Consists of molten rock.
Thick and can travel very far before solidifying.
Very destructive but slow moving.