Volcanoes

Question 1

What is a volcano?

Answer 1

A volcano is an opening or a vent on the earths surface.

Question 2

Where do most volcanoes occur

Answer 2

At destructive or constructive plate boundaries or hot spots

Question 3

What causes volcanoes to erupt

Answer 3

Due to earthquakes underneath the surface or too much pressure can build up

Question 4

Benefits of volcanoes

Answer 4

Volcanoes and areas near them can be used to produce geothermal energy, tourist attractions, and they can form islands for people to live on

Question 5

Volcano dangers

Answer 5

Pyroclastic flow (super hot avalanche). Volcanic tephra ‘bomb’, lava flow, lahar volcanic mud flow.

Question 6

Monitoring volcanoes

Answer 6

Scientists use tilt meters, lasers, seismographs (all called precursors) they also look for bulges, patterns of earthquakes and changing gas levels. They use this data to create hazard maps so people can evacuate safely (people don’t always listen eg mt St. Helens 61 people tragically died.