Volcanoes and Earthquakes Quiz

Volcanoes are primarily located on:

• The Earth’s core

• The boundaries of tectonic plates

• Deserts

• Ocean trenches

What is expelled through volcanoes at high temperatures?

• Ice

• Materials from the Earth’s interior

• Sand

• Fossils

Which type of volcano is *always* active but only *sometimes* erupts?

• Extinct

• Dormant

• Active

• Submerged

Dormant volcanoes are characterized by:

• Never erupting again

• Erupting every decade

• Not erupting for a long time but expected to erupt again

• Being underwater

Extinct volcanoes differ from dormant ones because they:

• Erupt more violently

• Are found only in oceans

• Are not expected to erupt again

• Have no crater

What initiates a volcanic eruption?

• Wind pressure

• Intense pressure on magma inside the Earth

• Lunar tides

• Animal activity

During an eruption, magma exits through the:

• Hypocenter

• Vent

• Epicenter

• Fault line

Which of these is *not* expelled during a volcanic eruption?

• Lava

• Ashes and rocks

• Gases

• Groundwater

Volcanic cones are formed by:

• Erosion of existing mountains

• Accumulation of expelled materials

• Tectonic plate collisions

• Wind deposition

Islands formed by volcanic eruptions result from:

• Coral growth

• Expelled materials accumulating underwater

• Glacier melting

• River sedimentation