Volcanoes: Earth's Surface Shapers

How do volcanoes typically form at convergent plate boundaries?

• Through the accumulation of sedimentary layers

• By the subduction of one tectonic plate beneath another

• From the collision of two continental plates

• By the divergence of tectonic plates

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Which type of volcano is characterized by broad, gently sloping sides and is primarily built from fluid lava flows?

• Cinder cone

• Composite volcano

• Shield volcano

• Stratovolcano

What is the primary difference between a composite volcano and a shield volcano?

• Composite volcanoes are smaller and erupt less violently

• Shield volcanoes have steeper slopes

• Composite volcanoes are built from alternating layers of lava and ash

• Shield volcanoes are formed from explosive eruptions

Which of the following is a key indicator of volcanic activity at divergent plate boundaries?

• Formation of deep ocean trenches

• Creation of mid-ocean ridges

• Development of large mountain ranges

• Formation of island arcs

What type of volcanic eruption is most likely to produce pyroclastic flows?

• Effusive eruption

• Hawaiian eruption

• Strombolian eruption

• Plinian eruption

Which of the following statements best explains how volcanoes provide information about plate boundaries?

• Volcanoes are only found at transform boundaries

• The location and type of volcanoes can indicate the type of plate boundary

• All volcanoes are formed by hotspots, unrelated to plate boundaries

• Volcanoes do not provide any information about plate boundaries

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What is the primary material ejected during a volcanic eruption that forms a cinder cone volcano?

• Lava flows

• Ash and pumice

• Basaltic lava

• Tephra

Which of the following is a common feature of a stratovolcano?

• A single, large crater

• A caldera formed by a collapsed magma chamber

• Steep, conical shape with multiple layers of hardened lava and ash

• A flat, wide summit

How do hotspot volcanoes differ from those formed at plate boundaries?

• They are only found in oceanic regions

• They form independently of tectonic plate movements

• They are always explosive

• They are smaller and less active

Which of the following processes is responsible for the formation of volcanic island arcs?

• Subduction of an oceanic plate beneath a continental plate

• Divergence of two oceanic plates

• Subduction of an oceanic plate beneath another oceanic plate

• Collision of two continental plates

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1