volcanoes

This is the largest supervolcano found in North America

• Mt. Pinatubo

• Mt. St Helen

• Yellowstone

• Mount Shasta

A super volcano eruption can block the sun which blocks light and decreases _ and _

• global temp

• oxygen levels

• sea levels

• photosynthesis

_in Japan is one of the world's most recognized composite volcanoes

• Mt Fuji

• Mt Tokachi

• Mt Meakan

• Mt Usu

_volcanos are made of alternating layers of lava cooled to form rock and ash. The magma that erupts at these volcanoes are either felsic or intermediate.

A small volcano composed of rock fragments piled on top of one another is known as

• Cinder cone

• shield

• composite

• None of the above

A volcano is a vent through which molten rock and gas escape from a magma chamber

• true

• false

Cinder cones usually have a crater at the summit

• true

• false

Shield volcanoes are often at intraplate hot spots

• true

• false

Cinder cones are rarely larger than

• 300 km

• 3000 m

• 300 m

• 300mm

_are low sloping volcanoes that are made by effusive eruptions