ES-6.7-Composite Volcanoes

Multiple Choice

BELLRINGER:

Which of the following is NOT a distinctive characteristic of cinder cone volcanoes?

• Steep slopes with 30-40 degree angles

• Large craters relative to overall structure size

• Complex, irregular shapes

• Symmetrical, sometimes elongated downwind

Multiple Choice

Why are composite volcanoes considered both picturesque and potentially dangerous?

• Because they are found in remote locations

• Because they have unique shapes and can erupt violently

• Because they are always erupting

• Because they are the largest mountains on Earth

Multiple Choice

Which of the following is NOT a characteristic of the classic structure of composite volcanoes?

• Alternating layers of cinders and ash

• Interbedded lava flows

• Silica-rich andesitic magma

• Broad, gentle slopes

Open Ended

Explain how the composition of magma influences the explosiveness and flow of volcanic eruptions.

Multiple Choice

Which of the following features contribute to the perfect cone shape of certain volcanoes?

• Steep summit

• Gradual flanks

• Broad base

• All of the above

Multiple Select

Select all characteristics that distinguish shield volcanoes from composite volcanoes.

• Fluid basaltic lava

• Broad, gentle slopes

• Explosive eruptions

• Long lava flows