Exam 4: Volcanoes and Volcanic Processes

For the following items, please choose from one of the following answers. -________ the volcanoes of southwestern Alaska and the Aleutian Islands

Which magma association with the volcanic landform is false?

What is the largest immediate volcanic threat to human life and property?

What type of volcano is shown in the diagram below?

What is the dominant lava type erupted along mid-ocean ridges?

What is fine pyroclastic material called that can rain down on car windshields and stop aircraft engines?

________ is a major dissolved volatile constituent in both magmas and volcanic gases.

________ is a good example of intraplate volcanism.

What drives explosive volcanic eruptions?

Which of the following best describes seamounts and islands of the deep ocean basins?

Basaltic lavas are generally hotter and more viscous than andesitic lavas.

What is the most abundant gaseous component dissolved in most magmas?

Of the more than 50 volcanoes that have erupted in North America in the past 200 years, most are located in the Alaskan Aleutian Islands.

Which statement is most correct concerning volcanic effects on our atmosphere?

What term describes a liquid's characteristic stiffness and resistance to flow?

Vents that emit only heated, volcanic gases and water are called fumaroles.

Which one of the following shows the correct order (left to right)of decreasing magma viscosity?

What are massive, gently sloping volcanoes built of successive, mafic lava flows?

Vents that emit only hot gases and vapors are called ________.

Basalt is the most common magma erupted along oceanic rift systems.