Chapter 7 Geological Activity and Volcanoes

A volcano that is not currently erupting, but that has erupted in the recent past is known as a dormant volcano.

• TRUE

• FALSE

A volcano that is currently erupting or is just about to erupt is known as an

• Dormant volcano

• Extinct volcano

• Active volcano

• None of the above

Many volcanoes are found around the _________ basin

• Arctic Ocean

• Pacific Ocean

• Southern Ocean

• Atlantic Ocean

Volcanoes are located along:

• Both divergent and convergent boundaries

• Divergent plate boundaries only

• Transform plate boundaries only

• Convergent plate boundaries only

Which type of crust subducts at a convergent plate boundary?

• Oceanic

• Continental

• None of the above

• Both oceanic and continental crust

The subducting plate heats up as it sinks into __________

• the core

• the mantle

• the crust

Select all possible answers:

What are the two sources of melting at convergent plate boundaries where a plate subducts and volcanoes form?

• Increasing temperature

• Increasing density

• Increasing water content

• Increasing pressure

Which is an example of continental hotspot?

• Hawaii

• New Zealand

• Japan

• Yellowstone

Lava made by oceanic hotspot volcanoes makes this type of volcano:

• Shield volcanoes

• Cinder cone volcanoes

• Composite volcanoes

• None of the above

Why do oceanic hotspots, like the Hawaiian hotspot, result in the formation of volcano chains?

• Volcano chains form due to movement of tectonic plates over a stationary mantle plume

• Volcano chains form when multiple volcanic eruptions happen simultaneously

• Volcano chains form along subduction zones where there are multiple mantle plumes

• Volcano chains form due to the movement of a mantle plume underneath the Earth’s crust