Volcanoes

Question 1

At which tectonic locations would you find volcanic activity?

Answer 1

Mid-ocean ridges and subduction zones

Question 2

What are shield volcanoes, and why are they not especially hazardous to life?

Answer 2

Large mountains. They are low velocity, and lava spills slowly and then creates thin layers to strengthen the dome. This slow spill of lava is an effusive eruption.

Question 3

Pyroclastics

Answer 3

Flowing ash

Question 4

Identify a kind of volcanic structure that pyroclastics may build

Answer 4

Stratovolcanoes

Question 5

Describe a way in which a lahar may develop, and a way to avoid its most likely path

Answer 5

Rainfall, eruptions. It is a mudflow that moves 20-30 MPH and is gravity driven.

Question 6

Nuee ardentes

Answer 6

pyroclastic ashflows

Question 7

How may volcanic eruptions influence global climate?

Answer 7

Some of the gasses (ash and sulfur dioxide) released have a cooling effect. But gasses such as CO2 have a warming effect.

Question 8

Why is volcanic ash a particular hazard to aviation?

Answer 8

The ash can get into the engines of airlines and clog them. To reduce this stop all air travel that may be affected and if in air during this time land airplane immediately.