
Which volcano is the highest peak in Japan?
Mount Aso
Mount Fuji
Mount Etna
Krakatoa

Which volcano’s eruption in 1980 was the deadliest in U.S history?
Mount Hood
Mount Vesuvius
Mount St. Helens
Mauna Loa

What is the main gas in volcanic emissions?
Water vapor
Carbon dioxide
Oxygen
Methane

Which active volcano in Hawaii is the largest on Earth?
Mount St. Helens
Mauna Loa
Mount Vesuvius
Sunset Crater

What type of volcano is broad and has a gentle slope?
Cinder cone volcano
Composite volcano
Dome volcano
Shield volcano

A fast-moving mixture of hot gas and debris that flows out of a volcano is called ...?
Pyroclastic flow
Lava stream
Volcanic tsunami
Ash cloud

Which volcanic rock is dark in color and has a fine-grained texture?
Obsidian
Pumice
Basalt
Quartz

Which volcanic hazard can destroy buildings and infrastructure due to its weight?
Ashfall
Pyroclastic flow
Lahar
Volcanic gas emissions

Which type of volcano has steep sides and explosive eruptions?
Cinder cone volcano
Lava dome volcano
Shield volcano
Stratovolcano

What device measures tremors and detects movement under a volcano?
Barometer
Seismometer
Thermometer
Anemometer

Which volcanic island chain is located off the southern coast of Italy?
The Maldives
Aeolian Islands
Canary Islands
The Hebrides

The study of volcanoes and volcanic phenomena is called…?
Meteorology
Geology
Oceanography
Volcanology

Which oceanic region has a high concentration of active volcanoes?
Mid-Atlantic Ridge
East Pacific Rise
Ring of Fire
Hawaiian-Emperor Seamount Chain

The depression at the top of a volcano is called…?
Caldera
Dent
Vent
Pit

What connects the magma chamber to the surface of a volcano?
Fissure
Crater
Xylem
Vent

When a volcano emits lava, ash, etc. onto the Earth's surface, this is called…?
A burst
An eruption
Evaporation
An explosion

Molten rock under Earth's surface that feeds eruptions is called…?
Magma
Lava
Ash
Tar

Which volcanic hazard is caused by the rapid melting of snow and ice?
Avalanche
Hail
Lahar
Ashfall

Small, solidified droplets of lava ejected during an eruption are:
Pumice
Tephra
Lava flows
Volcanic bombs

Name the opening through which lava, ash, and gas come out during an eruption.
Caldera
Magma chamber
Volcanic vent
Lava tube